Answer:
y = x+1
Step-by-step explanation:
We can use
y = mx+b where m is the slope and b is the y intercept
y = 1x +b
Substitute the point into the equation
-7 = 1* (-8) +b
-7 = -8+b
Add 8 to each side
-7+8 = -8+8+b
b = 1
Put this back into the equation
y = x+1
