document.write( "Question 55178: write an equation in slope-intercept form for the line that satisfies each set of conditions.\r
\n" ); document.write( "\n" ); document.write( "PASSES THROUGH (1,-1),PARALLEL TO THE LINE THAT PASSES THROUGH (4,1) AND (2,-3)
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Algebra.Com's Answer #37534 by funmath(2933)\"\" \"About 
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write an equation in slope-intercept form for the line that satisfies each set of conditions.\r
\n" ); document.write( "\n" ); document.write( "PASSES THROUGH (1,-1),PARALLEL TO THE LINE THAT PASSES THROUGH (4,1) AND (2,-3)
\n" ); document.write( ":
\n" ); document.write( "In order to find the equation of a line we need a point and a slope (m). We don't have a slope, but we can find one using the slope formula: \"highlight%28m=%28y2-y1%29%2F%28x2-x1%29%29\" using the two points that they gave us: (x1,y1)=(4,1) and (x2,y2)=(2,-3)
\n" ); document.write( "\"m=%28-3-1%29%2F%282-4%29\"
\n" ); document.write( "\"m=-4%2F-2\"
\n" ); document.write( "\"highlight%28m=2%29\" Parallel lines have equal slopes.
\n" ); document.write( "Now that we have a slope (m=2) and a point (x1,y1)=(1,-1), we can use the point-slope formula to find the equation of a line: \"highlight%28y-y1=m%28x-x1%29%29\"
\n" ); document.write( "\"y-%28-1%29=2%28x-1%29\"
\n" ); document.write( "\"y%2B1=2x-2\" Slope intercept form is \"highlight%28y=mx%2Bb%29\", so solve for y.
\n" ); document.write( "\"y%2B1-1=2x-2-1\"
\n" ); document.write( "\"highlight%28y=2x-3%29\"
\n" ); document.write( "Happy Calculating!!!
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