Question

Determine if the graph represents a system that is Parallel, Perpendicular, or Neither.

Answer 1

The slope of the line in the first quadrant is

`m\text{ = }\frac{7-0}{7-0\text{ }}=\text{ 1}`

The slope of the second line in the first , 2nd and third quadrant is

`m\text{ = }\frac{2\text{ -0}}{-2-0}=\text{ -1}`

since the slope of one is negative of the other then they are perpendicular