Saturday
May 25, 2013

# Homework Help: Algebra 1

Posted by Tina on Monday, December 12, 2011 at 6:56pm.

using point slope formula how do you graph y-2=-3(xt2)

• Algebra 1 - Steve, Tuesday, December 13, 2011 at 10:56am

If that equation means

y-2=-3(x+2)

then the point-slope form is just

(y-2)/(x+2) = -3

That makes the point (-2,3) act like the origin: x+2 = 0 and y-3 = 0

Transforming back, you have

(y-3) = -3(x+2)

That means that every time x increases by 1, y decreases by 3 (the slope). Plot a couple of points and draw a line through them.

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