document.write( "Question 612388: graph the equation
\n" ); document.write( "-2y = -x + 8 \n" ); document.write( "
Algebra.Com's Answer #385424 by nerdybill(7384)\"\" \"About 
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graph the equation
\n" ); document.write( "-2y = -x + 8
\n" ); document.write( "multiplying both sides by -1:
\n" ); document.write( "2y = x - 8
\n" ); document.write( "dividing both sides by 2:
\n" ); document.write( "y = (1/2)x - 4
\n" ); document.write( "this is a line with a slope of 1/2 and the y-intercept at -4
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Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation \"1+x+%2B+-2+y+=+8\" describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is \"-a%2Fb+=+-1%2F-2\".
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 8/1 = 8.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 8/-2 = -4.
  • Slope is -1/-2 = 0.5.
  • Equation in slope-intercept form: y=0.5*x+-4.
\"graph%28+500%2C+500%2C+8-8%2C+8%2B8%2C+-4-8%2C+-4%2B8%2C+0.5%2Ax%2B-4+%29+\"\n" ); document.write( "

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