document.write( "Question 390709: I need help graphing y + 5 = -3/4 (x-6). \n" ); document.write( "
Algebra.Com's Answer #277080 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"y+%2B+5+=+-3%2F4+%28x-6%29\".....multiply by \"4\"\r
\n" ); document.write( "\n" ); document.write( "\"4y+%2B+5%2A4+=+-%283x%2F4%294+-6%2A4%29\"\r
\n" ); document.write( "\n" ); document.write( "\"4y+%2B+20+=+-3x+-24%29\"\r
\n" ); document.write( "\n" ); document.write( "\"4y+=+-3x+-24+-20%29\"\r
\n" ); document.write( "\n" ); document.write( "\"4y+=+-3x+-44+%29\"\r
\n" ); document.write( "\n" ); document.write( "standard form\r
\n" ); document.write( "\n" ); document.write( "\"3x+%2B4y+=+-+44+%29\"\r
\n" ); document.write( "\n" ); document.write( "graph:\r
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Solved by pluggable solver: Graphing Linear Equations

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\n" ); document.write( " \"3%2Ax%2B4%2Ay=-44\"Start with the given equation
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\n" ); document.write( " \"4%2Ay=-44-3%2Ax\" Subtract \"3%2Ax\" from both sides
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\n" ); document.write( " \"y=%281%2F4%29%28-44-3%2Ax%29\" Multiply both sides by \"1%2F4\"
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\n" ); document.write( " \"y=%281%2F4%29%28-44%29-%281%2F4%29%283%29x%29\" Distribute \"1%2F4\"
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\n" ); document.write( " \"y=-44%2F4-%283%2F4%29x\" Multiply
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\n" ); document.write( " \"y=%28-3%2F4%29%2Ax-44%2F4\" Rearrange the terms
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\n" ); document.write( " \"y=%28-3%2F4%29%2Ax-11\" Reduce any fractions
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\n" ); document.write( " So the equation is now in slope-intercept form (\"y=mx%2Bb\") where \"m=-3%2F4\" (the slope) and \"b=-11\" (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=-8
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\n" ); document.write( " \"y=%28-3%2F4%29%2A%28-8%29-11\"
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\n" ); document.write( " \"y=24%2F4-11\" Multiply
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\n" ); document.write( " \"y=-20%2F4\" Add
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\n" ); document.write( " \"y=-5\" Reduce
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\n" ); document.write( " So here's one point (-8,-5)
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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=%28-3%2F4%29%2A%28-4%29-11\"
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\n" ); document.write( " \"y=12%2F4-11\" Multiply
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\n" ); document.write( " \"y=-32%2F4\" Add
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\n" ); document.write( " \"y=-8\" Reduce
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\n" ); document.write( " So here's another point (-4,-8). 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=%28-3%2F4%29%2Ax-11\" through the points (-8,-5) and (-4,-8)
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\n" ); document.write( " So from the graph we can see that the slope is \"-3%2F4\" (which tells us that in order to go from point to point we have to start at one point and go down -3 units and to the right 4 units to get to the next point), the y-intercept is (0,\"-11\")and the x-intercept is (\"-14.6666666666667\",0) ,or (\"-44%2F3\",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=-11\" this tells us that the y-intercept (the point where the graph intersects with the y-axis) is (0,\"-11\").
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\n" ); document.write( " So we have one point (0,\"-11\")
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\n" ); document.write( " Now since the slope is \"-3%2F4\", this means that in order to go from point to point we can use the slope to do so. So starting at (0,\"-11\"), we can go down 3 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=%28-3%2F4%29%2Ax-11\"
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\n" ); document.write( " So this is the graph of \"y=%28-3%2F4%29%2Ax-11\" through the points (0,-11) and (4,-14)
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