Every x value should have only one value of y.
So the answer is the last choice.
22 is the answer because I just did it
Point slope form:
Y= m(x-x1) + y1
M= slope
(X1, y1) point that line passes through
Answer: y= 4(x+ 8)
C is a function. X cannot repeat itself more than once, that will make it not a function. For example 1,1, 1,2, 1,3 x repeats itself 3 times that is NOT a function. Y can repeat itself more than once but X cannot.