Write the equation of a line perpendicular to the given line but passing through the given point. y=-1/2x+1 (4,2)

y=-1/2x+1  (4,2) Write the equation of a line perpendicular to the given line but passing through the given point.
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2 Answers

The gradient of the perpendicular is -1/(-1/2)=2. The equation of the perpendicular is y=2x+b, where b can be found by plugging in the point (4,2): 2=8+b, making b=-6 and y=2x-6.

by Top Rated User (1.1m points)

2=8+b, making b=-6 and y=2x-6.

by Level 1 User (700 points)

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