Answer
$ x^2= (4)(45)(y)$
Work Step by Step
$y=ax^2$
$20=a(-60)^2$
or, $a =\dfrac{20}{3600}=\dfrac{1}{180}$
So, $y=\dfrac{x^2}{180}$
We will write the equation in standard form as follows:
$ x^2= (4)(45)(y)$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 4 - Review Exercises - Page 353: 50b
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