document.write( "Question 461469: determine whether (0,9) is a solution of 7x-4y=-6 \n" ); document.write( "

Algebra.Com's Answer #316462 by MathLover1(20849) $\"\"$ $\"About$

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given point: (0,9)=(x,y)\r
\n" ); document.write( "\n" ); document.write( " $\"x=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=9\"$ \r
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\n" ); document.write( "\n" ); document.write( "determine whether (0,9) is a solution of $\"7x-4y=-6\"$ ......plug in $\"x=0\"$
\n" ); document.write( " and $\"y=9\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7%2A0-4%2A9=-6\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"0-36=-6\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-36=-6\"$ ...left side is $\"not\"$ equal to right side; so, (0,9) is not a solution of $\"7x-4y=-6\"$ \r
\n" ); document.write( "\n" ); document.write( "let's see it on a graph:\r
\n" ); document.write( "\n" ); document.write( " $\"7x-4y=-6\"$ ..first write it in $\"slope-intercept\"$ form\r
\n" ); document.write( "\n" ); document.write( " $\"7x%2B6=4y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%287%2F4%29x%2B3%2F2=y\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+%287%2F4%29x%2B3%2F2%29+\"$ \r
\n" ); document.write( "\n" ); document.write( "as you can see, the point (0,9) is not on a line
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