document.write( "Question 362321: Find a real number, n, such that the line containing the points (-5, 5) and (-1, 9) contains the point (n, 5). \n" ); document.write( "
Algebra.Com's Answer #258188 by stanbon(75887)\"\" \"About 
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Find a real number, n, such that the line containing
\n" ); document.write( "the points (-5, 5) and (-1, 9)
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\n" ); document.write( "slope = (9-5)/(-1--5) = 4/4 = 1
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\n" ); document.write( "Form: y = mx + b
\n" ); document.write( "5 = 1(-5)+b
\n" ); document.write( "b = 10
\n" ); document.write( "Equation of line thru (-5,5) and (-1,9):
\n" ); document.write( "y = x + 10
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\n" ); document.write( "\n" ); document.write( "contains the point (n, 5).
\n" ); document.write( "Substitute n for x and 5 for y; then solve for \"n\":
\n" ); document.write( "5 = n + 10
\n" ); document.write( "n = -5
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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