Please help me thank you sooo much

Answer:
Step-by-step explanation:
Firstly you must understand you want to get the value of y.
So put in values into equation which make x.
To understand here lets look at y = 0
if y is to be 0 then x is 3.
If we substitute this value into equation (B) we get the result.
Now we have identified our answer, all is left is to substitute all other values of x and see if y are true.
So , we can see B is the answer
Answer: B
Step-by-step explanation:
The answer has to be either A, or B, because when x input is negative, the y input is positive. Visa versa.
Then just input x and y into the equation to see which answer is correct.
First let’s do A: 12=-2(-3)-6
12=6-6
12 doesn’t equal 0, so A is incorrect
So then B is the obvious solution, but let’s solve it to make sure: 12=-2(-3)+6
12=6+6
This equation is true, so the answer is B