Match each equation with its slope

Y=2 has a slope of M=0
y=x has a slope of M=1
x=6 has an undefined slope
y-3x=7 has a slope of M=3
y=-3x+2 has a slope of M=-3
x+y=1 has a slope of M=-1

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.