document.write( "Question 406463: Please help me graph 8x-3y=6 \n" ); document.write( "
Algebra.Com's Answer #286794 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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Solved by pluggable solver: Graphing Linear Equations

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\n" ); document.write( " \"8%2Ax-3%2Ay=6\"Start with the given equation
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\n" ); document.write( " \"-3%2Ay=6-8%2Ax\" Subtract \"8%2Ax\" from both sides
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\n" ); document.write( " \"y=%28-1%2F3%29%286-8%2Ax%29\" Multiply both sides by \"-1%2F3\"
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\n" ); document.write( " \"y=%28-1%2F3%29%286%29%2B%281%2F3%29%288%29x%29\" Distribute \"-1%2F3\"
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\n" ); document.write( " \"y=-6%2F3%2B%288%2F3%29x\" Multiply
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\n" ); document.write( " \"y=%288%2F3%29%2Ax-6%2F3\" Rearrange the terms
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\n" ); document.write( " \"y=%288%2F3%29%2Ax-2\" Reduce any fractions
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\n" ); document.write( " So the equation is now in slope-intercept form (\"y=mx%2Bb\") where \"m=8%2F3\" (the slope) and \"b=-2\" (the y-intercept)
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\n" ); document.write( " So to graph this equation lets plug in some points
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\n" ); document.write( " Plug in x=0
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\n" ); document.write( " \"y=%288%2F3%29%2A%280%29-2\"
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\n" ); document.write( " \"y=0%2F3-2\" Multiply
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\n" ); document.write( " \"y=-6%2F3\" Add
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\n" ); document.write( " \"y=-2\" Reduce
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\n" ); document.write( " So here's one point (0,-2)
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\n" ); document.write( " Now lets find another point
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\n" ); document.write( " Plug in x=3
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\n" ); document.write( " \"y=%288%2F3%29%2A%283%29-2\"
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\n" ); document.write( " \"y=24%2F3-2\" Multiply
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\n" ); document.write( " \"y=18%2F3\" Add
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\n" ); document.write( " \"y=6\" Reduce
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\n" ); document.write( " So here's another point (3,6). Add this to our graph
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\n" ); document.write( " Now draw a line through these points
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\n" ); document.write( " So this is the graph of \"y=%288%2F3%29%2Ax-2\" through the points (0,-2) and (3,6)
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\n" ); document.write( " So from the graph we can see that the slope is \"8%2F3\" (which tells us that in order to go from point to point we have to start at one point and go up 8 units and to the right 3 units to get to the next point) the y-intercept is (0,\"-2\")and the x-intercept is (\"0.75\",0) ,or (\"3%2F4\",0) . So all of this information verifies our graph.
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\n" ); document.write( " We could graph this equation another way. Since \"b=-2\" this tells us that the y-intercept (the point where the graph intersects with the y-axis) is (0,\"-2\").
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\n" ); document.write( " So we have one point (0,\"-2\")
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\n" ); document.write( " Now since the slope is \"8%2F3\", this means that in order to go from point to point we can use the slope to do so. So starting at (0,\"-2\"), we can go up 8 units
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\n" ); document.write( " and to the right 3 units to get to our next point
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\n" ); document.write( " Now draw a line through those points to graph \"y=%288%2F3%29%2Ax-2\"
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\n" ); document.write( " So this is the graph of \"y=%288%2F3%29%2Ax-2\" through the points (0,-2) and (3,6)
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