Question

what is the slope of a line that is perpendicular to the line that contains points (5,4) and (-7,9). explain please

Answer 1

`(12)/(5)`

Explanation:

First find the slope of the line containing points (5,4) and (-7,9). To find the slope use the formula
`(y_(2) -y_(1))/(x_(2)-x_(1))`. Putting those values in, you have

`(9-4)/(-7-5)`

Simplify

`(5)/(-12)`

`-(5)/(12)`

Then, to find the slope of the line perpendicular to that, find the negative reciprocal.

`(12)/(5)`