What is the domain of this relation?

( with photo )

Solve the system of equations. y= 2x y= x^2 - 15

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)

Find the slope of the line that passes through the points (-2, 4) and (-5, -6). -2/7 10/3 -2/3