leah1980 leah1980

30-08-2019
Mathematics

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Line m is perpendicular to x - 3y = -1 and passes through (9,5). What is the slope of line m?

Line m is perpendicular to x 3y 1 and passes through 95 What is the slope of line m class=

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sqdancefan sqdancefan

30-08-2019

Answer:

(A) -3

Step-by-step explanation:

Solving for y, the equation of the given line is ...

x +1 = 3y

y = (1/3)x +1/3

So, the slope of the given line is the x-coefficient, 1/3. Then the slope of the perpendicular line will be the opposite of the inverse of that:

slope of perpendicular = -1/(1/3) = -3

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