Question

In the function y=5x^2-2, what effect does the number 5 have on the graph as compared to the graph of y=x^2?

A.It stretches the graph horizontally by a factor of 5.
B.It shrinks the graph vertically by a factor of 5.
C.It stretches the graph vertically by a factor of 5.
D.It shrinks the graph horizontally by a factor of 5.

Answer 1

it is d. The a in ax^2+bx+c controls the width

Answer 2

if a is greater than 1, then it will shrink. if a is less than 1, it will widen

Answer 3

oh okay! thanks!

Answer 4

it was actually c..

Answer 5

but thanks anyway :)