Plz help with this math question photo is added

Explain if you can tho you don’t have to :)

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Find the domain and range of the following function f(x) = 51x - 21+ 4