8817 Warm Up Solve the inequality 81017 Warm
- Slides: 47
8/8/17 Warm Up Solve the inequality.
8/10/17 Warm Up Identify the function. 1. 2. 3.
Relations & Functions Domain/Range Parent Functions
Relation A relation is a set of ordered pairs.
Domain and Range The set of input values (x) for a relation is called the domain, and the set of output values (y) is called the range.
Function (vertical line test) a special type of relation in which each element of the domain is paired with exactly one element of the range.
Not a function: The relationship from number to letter is not a function because the domain value 2 is mapped to the range values A, B, and C. Function: The relationship from letter to number is a function because each letter in the domain is mapped to only one number in the range.
Families of Functions or Relations
Polynomial Functions
Constant Functions y=c Domain: Range:
Identity Function y=x Domain: Range:
Linear Functions Domain: Range:
Quadratic Functions y = ax 2 + bx + c Domain: Range:
Cubic Functions Domain: Range:
Power Functions f(x) = axb Domain: Range:
Absolute Value Functions y = │x│+1 Domain: Range:
Step Functions and Greatest Integer Function y = [x] Domain: Range:
Square Root Functions Domain: Range:
Exponential Functions y = abx y = 3(2)x Domain: Range:
Logarithmic Functions y = ln x or y = log x Domain: Range:
Rational Functions or Domain: Range:
Identify the Function and Find Its Domain and Range Domain: Range:
Identify the Function and Find Its Domain and Range Domain: Range:
Trig Functions
Sine Function f(x) = sin (x)
Cosine Function f(x) = cos (x)
Tangent Function f(x) = tan (x)
Cotangent Function f(x) = cot (x)
Secant Function f(x) = sec (x)
Cosecant Function f(x) = csc (x)
What do you know about the number system?
The Real Number System
Name the sets of numbers to which belongs. The bar over the 9 indicates that those digits repeat forever. Answer: rationals (Q) and reals (R)
Name the sets of numbers to which belongs. lies between 2 and 3 so it is not a whole number. Answer: irrationals (I) and reals (R)
Name the sets of numbers to which belongs. Answer: naturals (N), wholes (W), integers (Z), rationals (Q) and reals (R)
Name the sets of numbers to which – 23. 3 belongs. Answer: rationals (Q) and reals (R)
Name the sets of numbers to which each number belongs. a. Answer: rationals (Q) and reals (R) b. Answer: rationals (Q) and reals (R) c. Answer: irrationals (I) and reals (R) d. Answer: naturals (N), wholes (W), integers (Z) rationals (Q) and reals (R) e. 32. 1 Answer: rationals (Q) and reals (R)
Name the sets of numbers to which Answer: rationals (Q) and reals (R) belongs.
Properties of Real Numbers
Name the property illustrated by . The Additive Inverse Property says that a number plus its opposite is 0. Answer: Additive Inverse Property
Name the property illustrated by . The Distributive Property says that you multiply each term within the parentheses by the first number. Answer: Distributive Property
Name the property illustrated by each equation. a. Answer: Identity Property of Addition b. Answer: Inverse Property of Multiplication
Identify the additive inverse and multiplicative inverse for – 7. Since – 7 + 7 = 0, the additive inverse is 7. Since the multiplicative inverse is Answer: The additive inverse is 7, and the multiplicative inverse is
Identify the additive inverse and multiplicative inverse for Since . the additive inverse is the multiplicative inverse is Answer: The additive inverse is 3. and the multiplicative
Identify the additive inverse and multiplicative inverse for each number. a. 5 Answer: additive: – 5; multiplicative: b. Answer: additive: multiplicative:
Simplify Distributive Property Multiply. Commutative Property (+) Distributive Property Answer: Simplify.
Simplify Answer: .
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