Answer:
the answer is easy.
Step-by-step explanation:
Help with what? I am not sure what other question you asked that you need help on. What is the question?
For this case we must solve the following equation:

We apply distributive property on the right side of the equation:

We subtract 6y on both sides of the equation:

We subtract 6 from both sides of the equation:

Dividing by 6 on both sides of the equation:

So, the result is 
Answer:

It's both. Look at the gradients between one point then the one after it. It stays constant from one to the next. (Gradient is 2 by the way: (5-3)/(2-1))
The picture won’t load message me so i can answer !!