Answer: c
Step-by-step explanation:
Answer= 18
Explanation: you have to graph it on a grid paper first then make. Also trust me it’s the answer
At first let us choose the 5 points
at x = 0, y = 0
The first point is (0, 0)

We will choose a = 1/2
The points are
(-2, -4)
(-1, -1/2)
(0, 0)
(1, 1/2)
(2, 4)
The answer would be the first phrase.
3x is 3 times x, and +4 is the sum of 3x and 4.