Question

The slope of line a is 7. The slope of line b is −1/7 .

Which statement is true?

Options:

The lines are neither perpendicular nor parallel

The lines are perpendicular.

The lines are parallel.

Answer 1

Explanation:

We know that, If two line are perpendicular to each other wit slopes
`m_(1)` and
`m_(2)` them
`m_(1) *m_(2)=-1`

Hence,

`7*(-1/7)=-1`

This shows that these two line are perpendicular to each other.