Question

Find the equation of a line given the point and slope below. Arrange your answer in the form y = mx + b, where b is the constant.

(10, 11)
m = -9

Answer 1

y = -9x +101

Answer 2

y = mx + b. let's plug in m and x and y from above:
11 = -9(10) + b
11 = -90 + b
b = 101

Then: y = -9x + 101

Answer 3

Give the equation y = mx + b, since you know the value of the slope (m = -9) and a coordinate on the line (10, 11), you can substitute these numbers into the equation giving you 11 = -9*10 + b, then solve for b.