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The equation of line m is 4x + 5y = -2. What is the slope of a line that is perpendicular to line m? 4/5 -5/4 2/5 5/4
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The equation of line m is 4x + 5y = -2.

What is the slope of a line that is perpendicular to line m?

4/5

-5/4

2/5

5/4

User Podeig
by
6.5k points

2 Answers

3 votes

Your answer will be 5/4

User Ggenglish
by
6.9k points
1 vote
Perpendicular means negative reciprocal.

4x+5y=-2

5y = -4x - 2

y = -4/5x - 2

the negative reciprocal of -4/5 is 5/4. (Negative times a negative is a positive)
User Michael Fox
by
6.8k points
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