FREE POINTS LOVE YALL

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15