Answer:
y = 1/2x - 3
Explanation:
y2 - y1 / x2 - x1
-7 - (-1) / -8 - 4
-6/ -12
m = 1/2
y = mx + b
y = 1/2x + b
-1 = 1/2(4) + b
-1 = 2 + b
-3 = b
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