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Find a if the point (3, a) is on the line that passes through (-2, 7) and \((5,-8)\).

 Feb 14, 2022
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'3' is   5 /7 of the way from -2 to 5

 

5/7 th of the way from 7 to -8   is   a   =  -3 5/7

 Feb 14, 2022

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