Find the 53rd term of the arithmetic sequence 27, 11, -5,

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

How do i do this activity, is appreciated

Triangle xyz has vertices x(1,3), y(0,0)