document.write( "Question 1090378: 1.What the equation of the line passing through (-1, 4) and parallel to y = 2x + 1?\r
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Algebra.Com's Answer #704805 by math_helper(2461) $\"\"$ $\"About$

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document.write( "1.  y = mx + b,  where m=slope and, for parallel lines, slopes are equal so m=2.
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document.write( "         y = 2x+b
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document.write( "   We know this line passes through (-1, 4), so  when x=-1, y=4.  This lets you find 'b', the y-intercept:
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document.write( "            4 = 2(-1) + b  
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document.write( "            b = 6  —>   Equation of the line sought is  \r
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document.write( "2.  Use 
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document.write( "             F = future value
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document.write( "             P = present value
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document.write( "             r = annual % rate (expressed as a decimal)
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document.write( "             n = number of payments per year   
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document.write( "             t = number of years\r
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document.write( "           dollars\r
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document.write( "3.  , m can be calculated from 
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document.write( "                   
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document.write( "           y = -3x + b,  use either point to solve for 'b':
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document.write( "               7 = -3(-2) + b  —>  b = 1\r
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document.write( "               Final version of equation is  
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