Respuesta :

Answer:

y = 3x - 27

Step-by-step explanation:

Since the slope is three, that is the only one that can be the answer.

answer: y = 3x - 27

explanation:

equation of a straight line: 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 (6, - 9) into the partial equation

-9 = 18 + c ⇒ c = -9 - 18 = - 27

y = 3x - 27 ← equation of line