Answer:
y = - 3x - 6
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 (- 4, 6 ) into the partial equation
6 = 12 + c ⇒ c = 6 - 12 = - 6
y = - 3x - 6 ← equation of line in slope- intercept form