Factor the numerator to get:
(-3z(z+5))/(z+5) now you notice that (x+5) cancel out leaving:
-3z
It's 5.. if you're dividing those two from each other
Answer:Vertical stretch/compression is achieved by multiplying the function by a certain constant. In particular, if the function is vertically stretched by a factor k, otherwise, if , the function is vertically compressed by a factor k.
So, in your case, you want to multiply the function by 1/4.
