document.write( "Question 121416: I need help with this problem so that I can help my daughter understand her homework. The problem is : 8x + 4y = 12 \n" ); document.write( "

Algebra.Com's Answer #89087 by checkley71(8403) $\"\"$ $\"About$

You can put this solution on YOUR website!
Thank you very much for your help. One more question... if the problem had been a minus ((8x-4y=12)) would it still be an addition on the right of the equal sign... or would the sign have changed?
\n" ); document.write( "if you change all the signs by a negative sign you get the same equation.
\n" ); document.write( "-(8x+4y=12) or -8x-4y=-12 or -4y=8x-12 or y=8x-4-12/-4 or y=-2x+3
\n" ); document.write( "---------------------------------------------------------------------
\n" ); document.write( "IF THIS IS A LINE EQUATION THEN:
\n" ); document.write( "8X+4Y=12
\n" ); document.write( "4Y=-8X+12
\n" ); document.write( "Y=-8X/4+12/4
\n" ); document.write( "Y=-2X+3 THIS LINE HAS A SLOPE=-2 & A Y INTERCEPT=3 (0,3).
\n" ); document.write( "GRAPH FOLLOWS.
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+-2x+%2B3%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = -2x +3). \n" ); document.write( "

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