document.write( "Question 245818: Can someone help me.
\n" ); document.write( "1. Given the pair of linear equations in two variables:
\n" ); document.write( "•Find the x- and y-intercepts (if any) for each line. Show your work.
\n" ); document.write( "•Plot those intercepts, and graph the two lines. Submit your graph through the Dropbox.
\n" ); document.write( "•Apply elimination or substitution to find the coordinates of the point of intersection (if there are no solutions or infinite solutions, state this). Show your work.\r
\n" ); document.write( "\n" ); document.write( "x + y = -9
\n" ); document.write( "x + y = 3\r
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Algebra.Com's Answer #179490 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1. Given the pair of linear equations in two variables:
\n" ); document.write( "x + y = -9
\n" ); document.write( "x + y = 3
\n" ); document.write( "---------------------
\n" ); document.write( "•Find the x- and y-intercepts (if any) for each line. Show your work.
\n" ); document.write( "x + y = -9
\n" ); document.write( "x-int: Let y = 0, then x = -9
\n" ); document.write( "x-int is (-9,0)
\n" ); document.write( "----
\n" ); document.write( "y-int: Let x = 0, then y = -9
\n" ); document.write( "y-int is (0.-9)
\n" ); document.write( "---
\n" ); document.write( "Plot those points and draw a line thru them to get this graph:
\n" ); document.write( "\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C-x-9%29\"\r
\n" ); document.write( "\n" ); document.write( "======================
\n" ); document.write( "x+y = 3
\n" ); document.write( "If x = 0, y = 3 giving you y-int of (0,3)
\n" ); document.write( "If y = 0, x = 3 giving you x-int of (3,0)
\n" ); document.write( "---
\n" ); document.write( "Plot the two points and draw a line thru them to get this graph:
\n" ); document.write( "\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C-x%2B3%29\"\r
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "•Plot those intercepts, and graph the two lines. Submit your graph through the Dropbox.
\n" ); document.write( "•Apply elimination or substitution to find the coordinates of the point of intersection (if there are no solutions or infinite solutions, state this). Show your work.
\n" ); document.write( "x + y = -9
\n" ); document.write( "x + y = 3
\n" ); document.write( "---
\n" ); document.write( "Subtract the 2nd Equation from the 1st to get:
\n" ); document.write( "0 = -12
\n" ); document.write( "---
\n" ); document.write( "That is a contradiction and means there is no solution
\n" ); document.write( "for the system of these two equations. The lines are
\n" ); document.write( "parallel so have no point of intersection.
\n" ); document.write( "\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C-x-9%2C-x%2B3%29\"
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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