Drawing a Line, Given the Slope and One PointDate: 05/23/2002 at 16:36:56 From: Karen Subject: Slope of line with with unknown point Q: Sketch the line with the given slope through the given point. How do I draw a line on a graph when I know the slope and only one coordinate on the plane? I tried to use the formula M= (Y2-Y1)/(X2-X1) I am trying to solve: point = (2,1), slope = 2 Thanks so much for your help. Everyone in my class needs it. :-) Date: 05/25/2002 at 11:28:23 From: Doctor Ian Subject: Re: Slope of line with with unknown point Hi Karen, Start by plotting the point you know: | - | - * | +--|---|-- Then think about what the slope tells you. It tells you that rise/run is 2, which means that if you move two units up, and one to the right, you'll still be on the line: | - ....* (2+2,1+1) | . - . | . - * (2,1) | +--|---|---|---|--- And now you have _two_ points on the line. Can you take it from here? - Doctor Ian, The Math Forum http://mathforum.org/dr.math/ Date: 05/30/2002 at 15:44:01 From: Karen Subject: Slope of line with with unknown point Thank you Dr. Ian! I'll share your solution with all of my friends in class. Karen |
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