Least common multiple of 2,5, and 7

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

Issof claims that the scale factor is 1/2. which statement about his claim is correct

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.