Question

A line has a slope of 2 and passes through the point (7,9). What is its equation in slope-intercept form?

Answer 1

Slope intercept form: y = mx + b

m = slope

b = y-intercept

Solve for the y-intercept.

9 = 2(7) + b

9 = 14 + b

9 - 14 = 14 + b - 14

-5 = b

y = 2x - 5

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