Question

what is the slope: 3x+y=15

Answer 1

actually, I need the slope of a linre perpendicular to it

Answer 2

The slope of 3x+y=15 is -3. You see this by rewriting to y=-3x+15, the constant in front of the x is the slope. For the slope of a line perpendicular to it you need to solve the following equation: -3*s=-1 in which s is the slope you want.

Answer 3

I don't know how to solve that. the answer choices are 5) 1/3) and -1/3)

Answer 4

\[s=\frac{-1}{-3}=\frac{1}{3}\]

Answer 5

thanks