Which method is used in elimination to find the solutions of 4a - 7b = 9 and 8a - 7b = 13?

answer: 1 + 1 = 11

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

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hint: which coefficient is a multiple of 360°?

step-by-step explanation: