Question

Write an equation of the line that Passes through the point (-6,9) with slope -5

Answer 1

y = -5x - 21

Explanation:

Use slope-intercept form:

y = mx + b

(-6,9) can be inputted as (x,y) so the equation turns to:

9 = m(-6) + b

since we also know that the slope is -5, the equation would turn into:

9 = (-5)(-6) + b

9 = 30 + b

b = -21

Since you now know b (aka the y-intercept) is -21, you can create an equation and input -21 for b:

y = -5x - 21

Hope this helps!