Homework Help: Math

Posted by Anna on Sunday, December 20, 2009 at 12:42pm.

. Give the equation of the line that passes through point (5, 1) and is parallel to the line y = 3x – 1. Please help, I am so confused.

Math - MathMate, Sunday, December 20, 2009 at 1:03pm
The line passing through (x1,y1) and parallel to y=mx+b
is (y-y1)=m(x-x1)
Substitute (5,1) for (x1,y1) and y=3x-1 for y=mx+b
gives
y-1=3(x-5)
Rerranging
y=3x-14
Check
1=3x-14
1=3(5)-14
1=1 OK

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