Answer:
y = - 8x - 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + b ( m is the slope and b the y- intercept )
Here m = - 8 , then
y = - 8x + c ← is the partial equation
To find c substitute (9, - 73 ) into the partial equation
- 73 = - 72 + c ⇒ c = - 73 + 72 = - 1
y = - 8x - 1 ← equation of line
