Answer:
1. m = -4
2. y - 13 = -4(x + 8)
3. y - 9 = -4(x + 7)
Step-by-step explanation:
Slope m = (y2-y1)/(x2-x1)
m = (9 - 13)/(-7 - -8) = -4/+1 = -4
The point slope formula using (-8,13):
y - 13 = -4(x- -8) => y - 13 = -4(x + 8)
The point slope formula using (-7,9):
y - 9 = -4(x - -7) => y - 9 = -4(x + 7)
