What is the x intersept of the graph -4x = -20?

Algebra 1: unit 6 part 2 of test a) the table shows a linear function. x 0 1 2 3 5 13 21 29 37 45 53 (a) determine the difference of outputs of any two inputs that are 1 unit apart. show your work. (b) determine the difference of outputs of any two inputs that are 2 units apart. show your work.

Determine the relationship of ab and cd given the following points

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=