Question

What is the y-intercept of a line that has a slope of -3 and passes through point (-5, 4)?

O-17
O-11
07.
O 19

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 , then

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

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

4 = - 3(- 5) + c = 15 + c ⇒ c = 4 - 15 = - 11

the y- intercept = - 11