Answer:
y = - 2x + 9
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 = - 2, thus
y = - 2x + c ← is the partial equation
To find c substitute (5, - 1) into the partial equation
- 1 = - 10 + c ⇒ c = - 1 + 10 = 9
y = - 2x + 9 ← equation of line
