kenidempsey kenidempsey

11-01-2017
Mathematics

contestada

1.For the data in the table does y vary directly with x if it does write an equation for the direct variation.

X|Y
8|13
16|26
24|39

Respuesta :

Аноним Аноним

11-01-2017

Yes

slope = (26 - 13) / (16-8) = 13/8
y = mx + b passing (8,13)

13 = 13/8(8) + b
13 = 13 + b
so b = 13-13 = 0

equation y = 13/8x

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