document.write( "Question 370045: find the equation of this line (0, -1), (2, -5), (4, -9) \n" ); document.write( "
Algebra.Com's Answer #263699 by Fombitz(32388)\"\" \"About 
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\n" ); document.write( "Use two points to determine the slope.
\n" ); document.write( "\"m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\"
\n" ); document.write( "\"m=%28-9-%28-1%29%29%2F%284-0%29=-%288%2F4%29=-2\"
\n" ); document.write( "Now use the slope-intercept form of a line,\"y=mx%2Bb\"
\n" ); document.write( "\"y=-2x%2Bb\"
\n" ); document.write( "Use any point to solve for \"b\".
\n" ); document.write( "\"-9=-2%284%29%2Bb\"
\n" ); document.write( "\"-9=-8%2Bb\"
\n" ); document.write( "\"b=-1\"
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\n" ); document.write( "\"highlight%28y=-2x-1%29\"
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