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20 votes
What is the slope of a line perpendicular to the line whose equation is x+y=9

Fully simplify your answer.

User Tibbelit
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1 Answer

26 votes
26 votes

Answer:

1/2x

Explanation:

To find perpendicular slope, you have to find the inverse of the x. First, though, you have to get y by itself. To do this, subtract x, moving it to the other side of the equation. You end up with y=-x+9. After that, all you need to do is find the opposite x, which is 1/2x. Since it's only asking for a slope, that's your answer.

Hope this helped!

User Jens X Augustsson
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3.3k points