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23-06-2019
Mathematics

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11. Line n passes through points (7,12) and (4, 15). What is the slope of a line that
is perpendicular to line n?

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23-06-2019

Answer:

It is 1.

Step-by-step explanation:

The slope of line n = rise / run

= (15 - 12) / (4 - 7)

= 3 / -3.

So the slope m = -1.

So the slope of the line perpendicular to n is -1 /m = -1 / -1 = 1.

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