Question

What is the yintercept of a line that has a slope of -3 and passes througpoint (-5,4)

Answer 1

y- intercept = - 11

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 of the line

To find c substitute (- 5, 4) into the partial equation

4 = 15 + c ⇒ c = 4 - 15 = - 11 ← y- intercept