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Mathematics 8 Online
OpenStudy (anonymous):

calculate the equation of the line that is perpendicular to the line y=2x+5 and passes through the point (9,-14)

OpenStudy (jdoe0001):

what do you think would be the slope for y=2x+5 ?

OpenStudy (anonymous):

1st understand that perpendicular lines have slopes that are negative reciprocals.

OpenStudy (anonymous):

slope of y=2x+5 is 2. slope of perpendicular line is thus -0.5 If the new line is y=(-0.5)x+c and passes through (9,-14) then -14=(-0.5)9+c. Solve for c.

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