Answer
(a) $k = 16$
(b) $y = 16x^2$
(c) $y = 400$
Work Step by Step
(a) $$y = kx^2$$ $$(64) = k(2)^2$$ $$\frac{64}{4} = k$$ $$16 = k$$
(b) $$y = (16)x^2$$
(c) $$y = 16(5)^2$$ $$y = 16(25)$$ $$y = 400$$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 3 - Polynomial and Rational Functions - Exercise Set 3.6 - Page 422: 110
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