Question

Help with question 8 a and b)

Answer 1

I think when you subtract 4 from x, you are shifting the graph right horizontally 4 units.  When you add 84 at the end of the function, you are shifting it up vertically 84 units.  When you times it by -5, you are stretching it by a factor of 5 and flipping it upside down.

just think of how each term effects the y value.