Answer:
C is the answer
Step-by-step explanation:
The answer is C
First you look to the X axis and then the Y, so you found the -3 at the X axis and you look to the Y axis. Then you try and find the 4, so the answer is C. Remember to always look at the X axis first.
3y + x = 12
When y = 3, we have 3(3) + x = 12.
=> 9 + x = 12, x = 3.
For number 3 it is D
