Question

Which is the quadratic variation equation for the relationship?

y varies directly with x2 and y = 72 when x = 6.

a)y=2x^2<---
b)y=12x<----
c)y=x^+25
d)y=4x^2
I'd say A but im not sure :(

Answer 1

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Answer 2

A is correct!

Answer 3

thx ^_^