70 Chapter 1 The Set of Real Numbers The graphing calculator allows for several methods of denoting the multiplication of two real numbers. For example, consider the product of and 4. 8 Calculator Exercises Simplify the expression without the use of a calculator.Then use the calculator to verify your answer. 152152152152 1524 54 5.2 2.6 6152 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 90152122 8.4 2.1 2.42 12.422 112112112 Section 1.6 Practice Exercises Study Skills Exercise Look through Section 1.6, and write down a page number that contains: a. An Avoiding Mistakes box __________________ b. A Tip box ________________ c. A key term (shown in bold) ________________ Vocabulary and Key Concepts 1. a. If a is a nonzero real number, then the reciprocal of ais . b. If either a or b is zero then the product ab . c. If ,and ,then . d. If and ,then is . e. If a and b have the same sign, then the product ab is (choose one: positive or negative). f. If a and b have different signs, then the quotient is (choose one: positive or negative). g. The product of a number and its reciprocal is . For example h. Which of the following expressions represents the product of 2 and x? a. 2x b. 2 x c. 2(x) d. (2)x e. (2)(x) 23 1 2 1 ab ab a 0 b 0 ab a 0 b 0
miller_beginning_intermediate_algebra_4e_ch1_3
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