document.write( "Question 414219: Write an equation in standard form of the line passing through (2,-5) and (-4,7) Thanks. Please answer ASAP for I have a test on monday.\r
\n" ); document.write( "\n" ); document.write( "I have tried doing the first y minus second y over first x minus second x to find the slope. I got -2. Then I plugged it in to the slope intercept form. Y =mx +b I plugged in one ordered pair and got the y intercept is equal to -1. I got -2x + y = -1 but the textbook said that the answer was 2x +y =-1 \n" ); document.write( "
Algebra.Com's Answer #290551 by mananth(16946)\"\" \"About 
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Write an equation in standard form of the line passing through (2,-5) and (-4,7) Thanks. Please answer ASAP for I have a test on monday.\r
\n" ); document.write( "\n" ); document.write( "(2,-5) and (-4,7) \r
\n" ); document.write( "\n" ); document.write( "The slope of line passing through (x1,y1),(x2,y2) = (y2-y1)/(x2-x1)
\n" ); document.write( "m=7-(-5)/(-4-2)
\n" ); document.write( "m=12/-6
\n" ); document.write( "m=-2
\n" ); document.write( "...
\n" ); document.write( "y= mx +b .
\n" ); document.write( "take any point above
\n" ); document.write( "(2,-5)
\n" ); document.write( "plug the point and slope to find b
\n" ); document.write( "-5=-2*2+b
\n" ); document.write( "-5+4=b
\n" ); document.write( "b=-1
\n" ); document.write( "so the equation is
\n" ); document.write( "y=-2x-1 \n" ); document.write( "
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