[MOVED] Find the equation of a line through (5, -1) and....

dieggo

New member
Joined
Sep 3, 2006
Messages
17
I have a homework question which concerns linear equations:

Find the equation of a line that goes through the point (5,-1) and is perpendicular to the graph of y = 1/3x + 1. Write the equation in slope-intercept form.

Please help me. Thank you!
 

peacefreak77

New member
Joined
Aug 22, 2006
Messages
32
If the line is perpendicular, you know the slope is the reciprocal negative, so your slope would be m = -3. Then you have y = -3x + b.

If you plug in your point, you can solve for b.
 
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