The graph of f(x) contains the point (3,-2). What corresponding point must be on the graph of g(x) = 2f(x) − 9 ?
Do we have to actually graph to get to the solution? I know that the graph is shifted right by 9 units and has a vertical compression of 2.
Do we have to actually graph to get to the solution? I know that the graph is shifted right by 9 units and has a vertical compression of 2.
1 Answer
The answer is
Explanation:
I will be using the official question (numbered #3).
The graph of
y = af(b(x- c)) + d
Where:
•a is the vertical stretch/compression
•b is the horizontal stretch/compression
•c is the horizontal transformation
•d is the vertical transformation
The formula
In our question, we have
Applying the formula, we get:
(3/1 +9, 2(-2) + 0) = (12, -4)
As required. My tip is just memorize that formula. It will be of great help to you, trust me.
Hopefully this helps!