document.write( "Question 408407: find the slope if it exists, of the line containing the pair of points, (2,7) and (5,-2). The slope m=?? \n" ); document.write( "

Algebra.Com's Answer #287737 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Using the point-slope formula, 
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document.write( "(2,7) and 
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document.write( "(5,-2) m = 9/-3  = -3
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document.write( "  y = -3x + b  |using ordered pair Pt(2,7) to solve for b
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document.write( "  7 = -6 + b    b = 13
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document.write( " y = -3x + 13
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document.write( "line slants to the left as  m < 0
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document.write( "m = -3/1: as y increases/decreases by 3, x increases/decreases by 1 in opposite direction
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