What is this graph called?

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

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)

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?