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06/14/13

the slope of the line through the points (3,-4) and (-7,10) is

answers:  7/5,  -7/2,    -7/5,    -5/7

05/27/13

Which line is perpendicular to the line y = x + 5 ?

y = 1/2x - 5 y = - 1/2x + 5 y = 2x + 10 y = - 2x + 10

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