Question

The function g(x) is a transformation of the parent function f(x). Decide how f(x) was transformed to make g(x).
http://i.imgur.com/l3252g1.png
A) Horizontal or vertical reflection.
B) Horizontal or vertical stretch.
C) Horizontal or vertical shift
D) Reflection across the line y=x

It's not C because the X values are the same. It could be B but I'm not sure. Any help would be fantastic!

Answer 1

Look at x = 2

how is y changing when we go from f(x) to g(x)?

Answer 2

It's being divided by 9.

Answer 3

how about for x = 3?

Answer 4

Divided by 9 as well.

Answer 5

So in general, we can say

g(x) = (f(x))/9

or

g(x) = (1/9)*f(x)

Answer 6

what does that 1/9 out front mean?

Answer 7

It stretches?

Answer 8

actually it vertically compresses

Answer 9

if you had a point like (1,9) on f(x)

then (1,1) will be on g(x)