Question

In the function y = a(x – h)2 + k

which variable controls the horizontal shift?
1)H
2)K
3)A
4)X

Answer 1

H

Explanation:

y=a(x-h)2+k

a= Vertical stretch or shrinkage

• (IaI>1) or (0<a<1)

h= Horizontal shift

• (x-h=0)
• x=h

K= Vertical shift

• y-value* a+k
• add k to the "new: values of y

Answer 2

h is the horizontal shift

Explanation:

y = a(x – h)^2 + k

This is the equation for a parabola in vertex form

The vertex is ( h,k) and it is shifted from (0,0)

h is the horizontal shift and k is the vertical shift