Respuesta :

sven37
First you must use the formula for slope to find the slope.

y2-y1/x2-x1 = 1-(-2)/2-1 = 3

Your equation is:

y = 3x + b

Substitute an x and a y value and solve for the y-intercept.

-2 = 3(1) + b

b = -5

Your final answer: y = 3x - 5
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