Question

Write an equation of a line in slope intercept form with slope -3 going through the point (2, -2)

Answer 1

y = - 3x + 4

Explanation:

The equation of a line in slope- intercept form is

y= mx + c ( m is the slope and c the y- intercept )

Here m = - 3, thus

y = - 3x + c ← is the partial equation

To find c substitute (2, - 2) into the partial equation

- 2 = - 6 + c ⇒ c = - 2 + 6 = 4

y = - 3x + 4 ← equation of line