Answer:
y = - 4x - 7
Step-by-step 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 = - 4, thus
y = - 4x + c ← is the partial equation
To find c substitute M(- 2, 1) into the partial equation
1 = 8 + c ⇒ c = 1 - 8 = - 7
y = - 4x - 7 ← equation of line
