Answer:
Here we have two concepts.
First, when we have that something, let's call it A, is an x% of another thing, let's call it B.
We have that:
A = (x%/100%)*B
In this case g(x) is 60% of f(x), then:
g(x) = (60%/100%)*f(x) = 0.6*f(x)
And this is called a vertical dilation.
When we have a function f(x), a vertical dilation of scale factor A is written as:
g(x) = A*f(x)
So in this case we have A = 0.6
Then we can write this as:
"g(x) is a vertical dilation of scale factor 0.6 of the function f(x)"
And to solve completely, let's write g(x):
g(x) = 0.6*f(x) = 0.6*(9*x + 5) = 5.4*x + 3
g(x) = 5.4*x + 3
