document.write( "Question 621075: What would the graph for the equation 4x-5y=12 look like? \n" ); document.write( "

Algebra.Com's Answer #390628 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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What would the graph for the equation 4x-5y=12
\n" ); document.write( "Why not plot the graph and see
\n" ); document.write( "Put the equation into the slope intercept form, y = mx + b
\n" ); document.write( "4x - 5y = 12
\n" ); document.write( "Subtract 4x from both sides
\n" ); document.write( "-5y = -4x + 12
\n" ); document.write( "y has to be positive, mult both sides by -1
\n" ); document.write( "5y = 4x - 12
\n" ); document.write( "Divide both side by 5
\n" ); document.write( "y = $\"4%2F5\"$ x - $\"12%2F5\"$
\n" ); document.write( "Decimals
\n" ); document.write( "y = .8x - 2.4
\n" ); document.write( "Plot at least 3 points, x=-2, x=0, x=8, I chose those that gave us integers for y but you can choose what ever you want
\n" ); document.write( "Substitute for x and find y for each point, a table will look like this
\n" ); document.write( " x | y
\n" ); document.write( "-------
\n" ); document.write( "-2 |-4
\n" ); document.write( " 0 |-2.4
\n" ); document.write( "+8 |+4
\n" ); document.write( ":
\n" ); document.write( "The graph will look like this
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-10%2C+10%2C+-10%2C+10%2C+.8x-2.4%29+\"$ \n" ); document.write( "

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