document.write( "Question 552839: how do you graph 5x-4y=24\r
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Algebra.Com's Answer #360529 by jim_thompson5910(35256)\"\" \"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( " \"5%2Ax-4%2Ay=24\"Start with the given equation
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\n" ); document.write( " \"-4%2Ay=24-5%2Ax\" Subtract \"5%2Ax\" from both sides
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\n" ); document.write( " \"y=%28-1%2F4%29%2824-5%2Ax%29\" Multiply both sides by \"-1%2F4\"
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\n" ); document.write( " \"y=%28-1%2F4%29%2824%29%2B%281%2F4%29%285%29x%29\" Distribute \"-1%2F4\"
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\n" ); document.write( " \"y=-24%2F4%2B%285%2F4%29x\" Multiply
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\n" ); document.write( " \"y=%285%2F4%29%2Ax-24%2F4\" Rearrange the terms
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\n" ); document.write( " \"y=%285%2F4%29%2Ax-6\" Reduce any fractions
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\n" ); document.write( " So the equation is now in slope-intercept form (\"y=mx%2Bb\") where \"m=5%2F4\" (the slope) and \"b=-6\" (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=%285%2F4%29%2A%280%29-6\"
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\n" ); document.write( " \"y=0%2F4-6\" Multiply
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\n" ); document.write( " \"y=-24%2F4\" Add
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\n" ); document.write( " \"y=-6\" Reduce
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\n" ); document.write( " So here's one point (0,-6)
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\n" ); document.write( " Now lets find another point
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\n" ); document.write( " Plug in x=4
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\n" ); document.write( " \"y=%285%2F4%29%2A%284%29-6\"
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\n" ); document.write( " \"y=20%2F4-6\" Multiply
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\n" ); document.write( " \"y=-4%2F4\" Add
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\n" ); document.write( " \"y=-1\" Reduce
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\n" ); document.write( " So here's another point (4,-1). 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=%285%2F4%29%2Ax-6\" through the points (0,-6) and (4,-1)
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\n" ); document.write( " So from the graph we can see that the slope is \"5%2F4\" (which tells us that in order to go from point to point we have to start at one point and go up 5 units and to the right 4 units to get to the next point) the y-intercept is (0,\"-6\")and the x-intercept is (\"4.8\",0) ,or (\"24%2F5\",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=-6\" this tells us that the y-intercept (the point where the graph intersects with the y-axis) is (0,\"-6\").
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\n" ); document.write( " So we have one point (0,\"-6\")
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\n" ); document.write( " Now since the slope is \"5%2F4\", this means that in order to go from point to point we can use the slope to do so. So starting at (0,\"-6\"), we can go up 5 units
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\n" ); document.write( " and to the right 4 units to get to our next point
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\n" ); document.write( " Now draw a line through those points to graph \"y=%285%2F4%29%2Ax-6\"
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\n" ); document.write( " So this is the graph of \"y=%285%2F4%29%2Ax-6\" through the points (0,-6) and (4,-1)
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