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

-1/2

Step-by-step 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

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!