# Transformation help

• Sep 27th 2010, 04:01 PM
Matrim
Transformation help
I'm doing the review package for my transformations test tomorrow. I seem to be stumped on one type of question.

If the point (6,-12) is on the graph of y=f(x), which point must be on the graph of y=f(-1/3x+6).

a) -36,-12
b) -24,-12
c) 0,-12
d) 16,-12

I've tried taking the x, which is 6, dividing it by -1/3 and then moving it 6 to the left, but that doesn't work. Any advice would be amazing.
• Sep 27th 2010, 09:04 PM
mr fantastic
Quote:

Originally Posted by Matrim
I'm doing the review package for my transformations test tomorrow. I seem to be stumped on one type of question.

If the point (6,-12) is on the graph of y=f(x), which point must be on the graph of y=f(-1/3x+6).

a) -36,-12
b) -24,-12
c) 0,-12
d) 16,-12

I've tried taking the x, which is 6, dividing it by -1/3 and then moving it 6 to the left, but that doesn't work. Any advice would be amazing.

Which is it: -1/(3x) + 6, or (-1/3)(x + 6), or -1/(3x + 6)?