Stitz-Zeager_College_Algebra_e-book

Y y 4 3 2 1 3 2 1 1 4 3 2 1 1 1 0 0 1 2 f

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Unformatted text preview: ezes to death or he’s howling non-stop. So we’re going to say that he can withstand temperatures no lower than −60◦ so that the applied domain is [−60, 107.5]. 11. (a) y = 3x (b) y = −6x + 20 12. (a) y = −3x 1 (b) y = 6 x + 23 − (−1)3 =3 2 − (−1) 1 −1 1 (b) 5 1 = − 5−1 √ 5 √ 16 − 0 1 (c) = 16 − 0 4 15. (a) 16. (a) 3x2 + 3xh + h2 −1 (b) x(x + h) (d) (e) (f) 3 2 32 − (−3)2 =0 3 − (−3) 7+4 7−3 5+4 − 5−3 7 =− 7−5 8 (3(2)2 + 2(2) − 7) − (3(−4)2 + 2(−4) − 7) = −4 2 − (−4) −7 (x − 3)(x + h − 3) (d) 6x + 3h + 2 (c) 2.2 Absolute Value Functions 2.2 127 Absolute Value Functions There are a few ways to describe what is meant by the absolute value |x| of a real number x. You may have been taught that |x| is the distance from the real number x to the 0 on the number. So, for example, |5| = 5 and | − 5| = 5, since each is 5 units from 0 on the number line. distance is 5 units −5 −4 −3 −2 −1 distance is 5 units 0 1 2 3 4 5 √ Another way to√ define absolute value is by the equation |x| = x2 . Using this de...
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This note was uploaded on 05/03/2013 for the course MATH Algebra taught by Professor Wong during the Fall '13 term at Chicago Academy High School.

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