Question

Find the slope of the line containing the points (0,0) and (0,-3).

Answer 1

To find the slope you need to know the slope formula.\[m=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\] To use this formula, you have to fill the information in with the coordinates that you have.\[m=\frac{ 0-(-3) }{ 0-0 }=\frac{ 3 }{ 0 }\] The answer is undefined. Therefore it is a vertical line.