document.write( "Question 253289: how do i plot the rise over run in a grid??????????????????????????????????????????????????????? \n" ); document.write( "

Algebra.Com's Answer #185581 by checkley77(12844) $\"\"$ $\"About$

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Given two points (0,0) & (4,2) you need to define the slope of the line through these two points or the slope (m).
\n" ); document.write( "Slope (m)=(y2-y1)/(x2-x1)=(2-0)/(4-0)=2/4=1/2=.5
\n" ); document.write( "Using the line equation Y=mX+b, with the second set of points (2,4) & the slope (m)=.5 we find the y intercept (b).
\n" ); document.write( "2=.5*4+b
\n" ); document.write( "2=2+b
\n" ); document.write( "b=2-2
\n" ); document.write( "b=0 the y intercept.
\n" ); document.write( "Y=.5X+0
\n" ); document.write( "Graphing this line we have the rise (Y=2) & the run (X=4).
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+.5x%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = .5x). \r
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