The answer is (-1,7)
I got this answer because to solve a system, you find the point on the graph where both lines intersect. And that point in this graph is (-1,7). Hope this helps!:)))))
Total number of marbles=5+3+4=12
Probability of picking a red marble =5/12
C. (-1, -2) would be your answer
That transformation is just a translation (x-2, y-4) from point (1,2)
Yea because it’s increasing