Answer:
m2 = - 1
Step-by-step explanation:
Subtract x from both sides of the equation
-y = - x - 3
Divide by - 1
-y/-1 = -x/-1 - 3/-1
y = x + 3
The slope of the line we were given is 1. The 1 is in front of the x
m1 * m2 = - 1
m1 = 1
1*m2 = - 1
m2 = - 1
