Find the slope of the line that contains the points (-2, 6) and (0, 4)

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

Me because some of question i don’t understand

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?