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What equation represents a line which is perpendicular to the line y = -6/5 - 7?

What equation represents a line which is perpendicular to the line y = -6/5 - 7?-example-1
User Florik
by
3.1k points

1 Answer

11 votes
11 votes

Answer:

B. (top right) 6y - 5x = 18

Explanation:

Is the equation of the given line

y = -6/5 x - 7?

The x is missing.

If so, then the slope of the given line is -6/5.

A perpendicular line has a slope that is the negative reciprocal of -6/5, so we need a slope of 5/6.

A.

6x - 5y = 30

-5y = -6x + 30

y = 6/5 x - 6

Here the slope is 6/5, so this is not it.

B.

6y - 5x = 18

6y = 5x + 18

y = 5/6 x + 3

This is it.

C.

6x + 5y = 20 has negative slope, so it is not it.

D.

5x + 6y = 42 has negative slope, so it is not it.

User Spacebiker
by
2.8k points