Question

Writing an equation in slope-intercept form given

A line passes through the point (-1, 8) and has a slope of -9.
Write an equation in slope-intercept form for this line.

Answer 1

y = -9x - 1

Explanation:

Step 1:

y = 8, x = -1

By putting the above values in equation (i)

8 = -9 (-1) + b

8 = 9 + b

-1 = b

b = -1

y = -9x - 1