Answer:
Proportional
Step-by-step explanation:
If the function is proportional, it will have the following relationship:
f(x) = kx
Let's look at the first one:
-14 = -7k
k = 2
Now let's see if k=2 is true for the rest:
0 = 2(0) True
10 = 2(5) True
16 = 2(8) True
f(x) = 2x. So this is indeed proportional.
