document.write( "Question 974201: (4,-2), parallel to -5x+7y=69 \n" ); document.write( "
Algebra.Com's Answer #596198 by MathLover1(20849)\"\" \"About 
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(\"4\",\"-2\"), parallel to \"-5x%2B7y=69\"=>\"y=%285%2F7%29x%2B69%2F7\"\r
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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 \"5%2F7\" (its from the slope of \"y=%285%2F7%29%2Ax%2B69%2F7\" which is also \"5%2F7\").\n" ); document.write( "Also since the unknown line goes through (4,-2), 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%2B2=%285%2F7%29%2A%28x-4%29\" Plug in \"m=5%2F7\", \"x%5B1%5D=4\", and \"y%5B1%5D=-2\"
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\n" ); document.write( " \"y%2B2=%285%2F7%29%2Ax-%285%2F7%29%284%29\" Distribute \"5%2F7\"
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\n" ); document.write( " \"y%2B2=%285%2F7%29%2Ax-20%2F7\" Multiply
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\n" ); document.write( " \"y=%285%2F7%29%2Ax-20%2F7-2\"Subtract \"-2\" from both sides to isolate y
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\n" ); document.write( " \"y=%285%2F7%29%2Ax-20%2F7-14%2F7\" Make into equivalent fractions with equal denominators
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\n" ); document.write( " \"y=%285%2F7%29%2Ax-34%2F7\" Combine the fractions
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\n" ); document.write( " \"y=%285%2F7%29%2Ax-34%2F7\" Reduce any fractions
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\n" ); document.write( " So the equation of the line that is parallel to \"y=%285%2F7%29%2Ax%2B69%2F7\" and goes through (\"4\",\"-2\") is \"y=%285%2F7%29%2Ax-34%2F7\"
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\n" ); document.write( " So here are the graphs of the equations \"y=%285%2F7%29%2Ax%2B69%2F7\" and \"y=%285%2F7%29%2Ax-34%2F7\"
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\n" ); document.write( " graph of the given equation \"y=%285%2F7%29%2Ax%2B69%2F7\" (red) and graph of the line \"y=%285%2F7%29%2Ax-34%2F7\"(green) that is parallel to the given graph and goes through (\"4\",\"-2\")
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