The graph shows the solution to which system of equations? a) y = x + 2 and y = -x - 4 b) y = 3x + 7 and y = x + 12 eliminate c) y = 2x - 3 and y = −2x + 1 d) y = -x + 4 and y = −2x + 5

C)y = 2x - 3 and y = −2x + 1

Step-by-step explanation:

The slopes of the lines are +2 (red) and -2 (green). Their y-intercepts are -3 (red) and +1 (green). The correct answer choice can be selected based on either y-intercept alone.

Of course you know that in the form ...

... y = mx + b

the slope is m and the y-intercept is b.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.