document.write( "Question 466786: passing through (-5,9) and parellel to y=8 \n" ); document.write( "
Algebra.Com's Answer #320071 by MathLover1(20850)\"\" \"About 
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Solved by pluggable solver: Finding the Equation of a Line Parallel or Perpendicular to a Given Line

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\n" ); document.write( " Since any two parallel lines have the same slope we know the slope of the unknown line is \"0\" (its from the slope of \"y=0%2Ax%2B8\" which is also \"0\").\n" ); document.write( "Also since the unknown line goes through (-5,9), we can find the equation by plugging in this info into the point-slope formula
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\n" ); document.write( " Point-Slope Formula:
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\n" ); document.write( " \"y-y%5B1%5D=m%28x-x%5B1%5D%29\" where m is the slope and (\"x%5B1%5D\",\"y%5B1%5D\") is the given point
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\n" ); document.write( " \"y-9=0%2A%28x%2B5%29\" Plug in \"m=0\", \"x%5B1%5D=-5\", and \"y%5B1%5D=9\"
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\n" ); document.write( " \"y-9=0%2Ax-%280%29%28-5%29\" Distribute \"0\"
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\n" ); document.write( " \"y-9=0%2Ax-0\" Multiply
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\n" ); document.write( " \"y=0%2Ax-0%2B9\"Add \"9\" to both sides to isolate y
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\n" ); document.write( " \"y=0%2Ax%2B9\" Combine like terms
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\n" ); document.write( " So the equation of the line that is parallel to \"y=0%2Ax%2B8\" and goes through (\"-5\",\"9\") is \"y=0%2Ax%2B9\"
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\n" ); document.write( " So here are the graphs of the equations \"y=0%2Ax%2B8\" and \"y=0%2Ax%2B9\"
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\n" ); document.write( " graph of the given equation \"y=0%2Ax%2B8\" (red) and graph of the line \"y=0%2Ax%2B9\"(green) that is parallel to the given graph and goes through (\"-5\",\"9\")
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