Which best represents the graph of y=2x-2

What is the inverse of the function f(x) = 2x + 1?

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

Find the axis of symmerty for x y=x squared -4x-8