Write a rule to describe each transformation

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

The function f(x) is shown in this graph the function g(x)=6x