The function f(x) = -5x. The graph of g(x) is f(x) vertically compressed by a factor of 1/4 and reflected in the x axis. What is the function rule for g(x)?

Question

g(x) = -20x
g(x) = -5/4x
g(x) = 20x
g(x) = 5/4x

I think it's B, but I'm really not sure... please help, thanks.

Answer 1

B does the compression, but not the reflection.

Reflection through the x-axis takes (x,y) -> (x,-y)