Find the values of a and b.

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]

With alll of except for the 2 that i did already