document.write( "Question 89495: Write the equation of the line passing though (5,2) and (4,-2).
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Algebra.Com's Answer #65092 by checkley75(3666) $\"\"$ $\"About$

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FIRST WE FIND THE SLOPE (m)
\n" ); document.write( "(-2-2)/(4-5)
\n" ); document.write( "-4/-1=4 FOR THE SLOPE.
\n" ); document.write( "NOW WE SUBSTITUTE ONE SET OF X & Y VALUES IN THE LINE EQUATION [Y=mX+b] & SOLVE FOR THE Y INTERCEPT (b).
\n" ); document.write( "2=4*5+b
\n" ); document.write( "2=20+b
\n" ); document.write( "b=2-20
\n" ); document.write( "b=-18 THIS IS THE Y INTERCEPT.
\n" ); document.write( "SO THE LINE EQUATION IS Y=4X-12 NOW WE GRAPH
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-20%2C+10%2C+y+=+4x+-18%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -20 to 10, y = 4x -18). \r
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