Will give brailiest ? ! someoneone me

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

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

Ineed to know the answer right now! !