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13-04-2017
Mathematics

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a graph that passes through 1,7.5 and 3,16.875

Respuesta :

13-04-2017

slope = (16.875-7.5)/(3-1)=4.6875

y=4.6875x+b, using (1,7.5)

7.5=4.6875+b

b=2.8125 so

y=4.6875x+2.8125

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