Question

What is the slope of the line that is perpendicular to the line whose equation is 2x-y=7?

-2
-1/2
1/2
2

Answer 1

-1/2

Explanation:

2x-y=7

y=2x-7

This line has a slope of 2, a line perpendicular to this line will have a reciprocal number to the slope of this line.

Which means another line is perpendicular to this line will have a slope of -1/2