Bell work 81514 Define Real number Rational Irrational
Bell work 8/15/14 Define: Real number Rational Irrational Integer Whole Number Natural Number Simplify. -(-7. 2) 1 -(-3) -9+(-4. 5) (-3. 4)(-2) -15/3 -2/5 + 3/-5
1. 1 Properties of Real Numbers
Real Number: the set of all rational and irrational numbers. Ex: 1, 3. 4565432356, 5/6, -4. . . Rational Numbers: numbers that can be written as a fraction a/b where be cannot be 0. Ex: 4, 12/6, 22/2. . Irrational number: number that cannot be written as a fraction. Ex: 0. 81649658092, ,
Rational Numbers -can be written as terminating decimals. Ex: 0. 25, 0. 135, 6. 86 -can be written as repeating decimals. Ex: 0. 33333, 0. 11111 -can be written as a fraction. Ex: 10/11, 14/2, 1/3
Irrational Numbers -cannot be written as a repeating or terminating decimal. Ex: 0. 26963269073
Real Rational Irrational
Rational Numbers -Natural numbers: the numbers used for counting. {1, 2, 3, 4. . . } -Whole numbers: natural numbers and 0. {0, 1, 2, 3, 4. . } -Integers: whole numbers and their opposites. {. . . -2, -1, 0, 1, 2. . . }
Graph 0. 3 2 ¼ - 2
Compare - 0. 08 and - 0. 1 Use the symbols < and >
The OPPOSITE or ADDITIVE INVERSE of any number x is -x Ex: The additive inverse of 2 is -2. the additive inverse of -400 is 400. The RECIPROCAL of any nonzero number a is 1/a. Ex: The reciprocal of 2 is 1/2. The reciprocal of -4/9 is -9/4.
Absolute value: a numbers distance away from zero.
Home work!! !!!!!! : ) Page 8 12, 14, 18, 22, 30, 34, 5 39, 44 , 48, 5
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