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Home Q & A Board Science-Related Homework Help Mathematics
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tlions tlions
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10 years ago
Determine the slope of a line perpendicular to a line whose slope is 7
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#1
Donated
10 years ago
If lines are perpendicular, they're slopes are opposite reciprocals. The reciprocal of 7 is 1/7, and the opposite of 7 is -7, so therefore, the slope of the perpendicular line is -1/7.
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#2
10 years ago
Quote from: connorp (10 years ago)
the slope of the perpendicular line is -1/7

Perfect.

So, take your number.

7

Change its sign, right now it's +, so it becomes negative:

-7

Now flip it! Remember, -7 is the same as -7/1.

1/-7 or -1/7
Biology - The only science where multiplication and division mean the same thing.
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#3
10 years ago
i need to know this answer as well!
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#4
Educator
10 years ago
Quote from: laurenconrad12 (10 years ago)
i need to know this answer as well!

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