What is the range of the function on the graph?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction