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y = -3x + 5
m = -3
y - y1 = m(x - x1)
y - (-4) = -3(x - (-2)
y + 4 = -3x - 6
y + 3x + 10 = 0
y = 5 -3x
m=-3
y = mx + b
-4 = -3 × -2 +b
= 6 + b
-4-6 = b
b = -10