Posted by **sam** on Monday, November 19, 2012 at 9:07pm.

find the equation, in function form, of athe line that passes through the points(1/2,-3) and (7/6,5/9)

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**Reiny**, Monday, November 19, 2012 at 9:35pm
find slope

slope = (5/9 + 3)/(7/6 - 1/2)

= (32/9) / (2/3)

= (32/9)(3/2) = 16/3

so y =(16/3)x + b

sub in the "easier" of the two points, (1/2 , -3)

-3 = (16/3)(1/2) + b

-3 = 8/3 + b

b = -17/3

y = f(x) = (-16/3)x - 17/3

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