Mathematics Vocabulary Grade 9 12 adjacent angle Angles

Mathematics Vocabulary - Grade 9 -12 adjacent angle Angles 1 and 2 are adjacent angles Angles immediately next to each other ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 adjacent side Sides immediately next to each other ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 alternate exterior angle Angles 1 and 2 are alternate exterior angles When two lines are crossed by another line (which is called the Transversal), the pairs of angles on opposite sides of the transversal but outside the two lines are called Alternate Exterior Angles ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 alternate interior angle Angles 1 and 2 are alternate interior angles When two lines are crossed by another line (which is called the Transversal), the pairs of angles on opposite sides of the transversal but inside the two lines are called Alternate Interior Angles ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 angle bisector A line that splits an angle into two equal angles ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 average salary Average Salary By Education e re eg s D M Ba ch el o as te r r's D eg r gr 's De ee ee ge As so cia te m e So Hi gh Sc Co l le ho ol 80000 60000 40000 20000 0 The amount of money that person in a particular profession makes ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 axis The horizontal and vertical number lines used in a coordinate plane system. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 axis of symmetry A line that cuts an object in half so that the two halves are mirror images of each other ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 bisector A line that cuts something (like an angle) in half ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 central angle An angle in a circle with its corner in circle's center ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 circular This cake is circular Having the shape of a perfect circle, or resembling a circle in shape ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 collinear Three or more points lie on the same straight line ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 commission Larry works at a furniture store. For every couch he sells, Larry gets $100 in commission. So, if Larry sells 7 couches this month, he will get $700 in addition to his regular wages. A fee paid based on a percentage of the sale made by an employee or agent, separate from regular payments of wages or salary ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 complementary angle Two angles that add up to equal 90° ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 conclusion Fact: 2 added to 3 equals 5 Fact: 3 subtracted from 5 equals 2 Conclusion: So, 2 subtracted from 5 would equal 3 A statement that follows logically from other facts ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 congruent triangle Triangles that are exactly the same size ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 construction The process of building something ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 converse If Sammy has 4 points, then Jared has 6 points. If Jared has 6 points, then Sammy has 4 points. Switching the hypothesis and conclusion of a conditional statement ("If… then…" statement) ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 coordinate plane The plane formed by the x-axis and the y-axis ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 correlation On a scatterplot, the closer together the points are, the higher the correlation. If the points are scattered far from one another, the correlation is less. Higher Correlation Lower Correlation The degree to which two variables are related ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 cosecant hypotenuse opposite side adjacent side For a given angle in a right triangle, a trigonometric function equal to the length of the hypotenuse divided by that of the side opposite the angle ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 cosine In a right angled triangle, the cosine of an angle is: The length of the adjacent side divided by the length of the hypotenuse. The abbreviation is cos ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 counterexample Example: All prime numbers are odd. But, 2 is a prime number. This is a counterexample. An example which disproves a proposition ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 decagon A polygon with 10 sides ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 depreciate In 2009, this car was worth $23, 000 In 2012, it had depreciated to $12, 000 The decrease in value of assets ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 domain All the values that go into a function ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 empty set A set with no elements, also called null set ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 equation of a line Slope intercept from (equation of a line): Various equations that represent a line. In all equations, slope is represented by m, the x-intercept by a, and the y-intercept by b. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 equiangular triangle A C B A triangle with three equal angles ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 exponential exponent Containing, involving, or expressed as an exponent ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 exterior angle Exterior Angle The angle between any side of a shape, and a line extended from the next side ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 feet per second Expresses the distance in feet traveled divided by the time in seconds ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 geometric series Example: A sequence made by multiplying some number each time ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 heptagon A polygon with 7 sides ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 hexagon A polygon with 6 sides ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 how much Brad ordered 5 pizzas and still has $6 left. How much money does Brad have left after he orders the pizza? • Brad has $6 left. A phrase asking for a total value or quantity ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 function table Displays the relationship between the inputs and outputs of a specific function ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 hyperbolic Relating to, involving, or typical of a hyperbola (a curve shaped like an arch) ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 hypotenuse Right Triangle The side opposite the right angle in a right-angled triangle ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 identity An equation that is true no matter what values are chosen. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 infinite This symbol represents infinite; this symbol has no start or end so it cannot be counted or measured Unable to be counted, unlimited; opposite of finite ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 inscribe To draw on the inside of, touching as many points as possible. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 interquartile range Interquartile Range = Q 3 – Q 1 The difference between the upper limit for the lower quarter and the lower limit for the upper quarter ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 inverse Inverse Opposite in effect; the reverse of ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 least common multiple the smallest common multiple that two or more numbers have in common ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 leg Either of the legs connected to the base of a trapezoid or triangle ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 line symmetry Another name for reflection symmetry. One half is the reflection of the other half. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 linear foot This line is a linear foot long A straight line measurement of 12 inches ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 linear graph Average Temperature 100 80 60 40 20 0 Month April May June July A model of a straight line on the X and Y axis. It represents the equation y=mx+b. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 linear pair A pair of adjacent angles formed by intersecting lines ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 log Abbreviation for Logarithm, How many of one number need to be multiplied to get another number ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 number sequence This number sequence is a set of even quantities from 2 through 12. An ordered set of quantities ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 opposite side The side across from the reference angle in a right triangle ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 perpendicular bisector Perpendicular bisector The line perpendicular to a segment passing through the segment's midpoint ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 point of intersection Point of Intersection The point at which two lines intersect, or cross ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 point symmetry Point of symmetry A special center point for certain kinds of symmetric figures or graphs. If a figure or graph can be rotated 180° about a point P and end up looking identical to the original, then P is a point of symmetry. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 polynomial Example of a polynomial: An expression made with constants, variables and exponents, which are combined using addition, subtraction and multiplication ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 precise Temperature in ◦F Average Temperature 100 80 60 Average Temperature 40 20 0 March April May June Exact or detailed ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 prime factor The prime factors are circled: A factor that is a prime number. One of the prime numbers that, when multiplied, give the original number. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 Pythagorean theorem In a right angled triangle the square of the long side is equal to the sum of the squares of the other two sides. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 quartile Each of the values that divide a list of numbers into quarters. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 reciprocal To get the reciprocal of a number, just divide 1 by the number ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 rectangular area B = 5 Rectangular Area An area that has the shape of a rectangle ©Partners for Learning, Inc. H = 3

Mathematics Vocabulary - Grade 9 -12 regression equation The regression equation: A function of a particular form (linear, quadratic, exponential, etc. ) that fits a set of paired data as closely as possible. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 regular pentagon A pentagon where all angles are equal and all sides are equal ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 regular hexagon a hexagon with six sides of equal length ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 representative sample Example: Amanda and Kyle conducted surveys to estimate how many students in their school would attend a student production of Fiddler on the Roof. They gave the survey to 75 random students. Giving the survey to 75 random students gives them the best idea of what every student at their school would think. This is a representative sample because their sample represents all of the students in their school. A small sample of something that accurately represents an entire group ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 right cylinder A cylinder that has centers of the bases that are aligned directly one above the other ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 right pyramid A pyramid that has an axis perpendicular to its base ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 rotational symmetry The shape can be rotated some amount and is still the same ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 semi-annual The drama department puts on a semi-annual play; it takes place on December 1 st and August 2 nd of each year. Happens twice a year ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 semicircle Half a circle ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 series Sequence: Series: A series is the sum of a sequence. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 sine The length of the opposite side divided by the length of the hypotenuse ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 slant height Slant Height The diagonal distance from the apex of a right circular cone or a right regular pyramid to the base ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 slope-intercept form y = mx + b, where m is the slope and b is the y-intercept. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 solution set Example: Any and all value(s) of the variable(s) that satisfies an equation, inequality, system of equations, or system of inequalities. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 square kilometer 1 km 2 (This is not the actual size of a square kilometer) A unit of area, equal to the area of a square with sides of one kilometer ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 square yard 1 yd 2 (This is not the actual size of a square yard) A unit of measurement using squares that measure one yard on each side ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 squared A number that has been multiplied by itself ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 sum of measures Sum of measures of angles: The result of adding measures together. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 supplementary Adding up to 180 degrees ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 supplementary angle Two Angles are Supplementary if they add up to 180 degrees. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 surface area The total area of the exterior surface of a solid. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 symmetric The two sides of the triangle are symmetric Describes a geometric figure or a graph consisting of two parts that are congruent to each other. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 time-and-a-half Sally gets paid $12 per hour. When she works overtime, she gets paid time-and-ahalf which is $18 per hour. rate of pay equal to one and a half times the normal rate, usually paid for overtime work ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 times table A table that shows you the results of multiplying two numbers ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 transversal Transversal A line that intersects two or more lines at different points. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 trigonometric function The six functions sine, cosine, tangent, cosecant, and cotangent. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 trigonometric relationship Describes a relationship between a side and angle of a triangle ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 undefined If the denominator of a fraction is 0, then the fraction is undefined. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 valid 2 added to 3 equals 5 3 subtracted from 5 equals 2 So, 2 subtracted from 5 would equal 3 These statements can be proven using mathematical equations (which are logical) so they are valid Having a well-founded, logical conclusion ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 variable a letter or other symbol that represents a number ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 velocity Velocity The rate of change of the position of an object. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 whole Whole Half All, everything, total amounts ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 wider The orange shape is wider than the blue shape Having greater distance from side to side ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 x-axis The horizontal number line on a rectangular coordinate system. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 x-coordinate The position of a point according to the x-axis ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 x-intercept The value of x at the point where a line or graph intersects the x-axis. The value of y is zero (0) at this point. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 9 -12 y-axis The value of x at the point where a line or graph intersects the x-axis. The vertical number line on a rectangular coordinate system. 
 The value of y is zero (0) at this point. ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 10 y-coordinate Y-coordinate is the vertical distance The position of a point according to the y-axis ©Partners for Learning, Inc.

Mathematics Vocabulary - Grade 10 y-intercept The value of y at the point where a line or graph intersects the y-axis. The value of x is zero (0) at this point. ©Partners for Learning, Inc.