Question

Which is the slope of a line perpendicular to the line whose equation is y=2x+5?

Answer 1

-1/2

Explanation:

the slope of a line that is perpendicular to a given equation of a line, is the negative reciprocal of the original slope

Answer 2

Explanation:

Given line is y=2x+5

By comparing it with the y=mx+b

we say that the slope of the given line is m=2

The concept is that the slope of a perpendicular line is given by -1/m.

Hence the slope of a line that is perpendicular to the given line is

`-(1)/(2)`