Wednesday

April 16, 2014

April 16, 2014

Posted by **Elisabeth** on Tuesday, February 10, 2009 at 6:03pm.

- Pre-Algebra -
**Damon**, Tuesday, February 10, 2009 at 7:27pmWell, graph it and see if they lie on a line.

or

say I have x and y in columns

take the first x and y (X1,Y1)

take the last x and y (Xe/Ye)

fit a straight line to those two points for example by saying

(y-Y1) (Ye-Y1)

----- = ----

(x-X1) (Xe-X1)

That will give you the equation of the line through those two points.

Then try the other points in that equation. If they work, all the points are on the line through the first and last points.

- Pre-Algebra -
**Mr.James**, Thursday, February 12, 2009 at 6:56pmya

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