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25-01-2017
Mathematics

contestada

The value of y varies directly with x, and y = 4 when x = 1.
Find y when x = −3.

A. −12
B. 7
C. 1
D. −7

Respuesta :

28-01-2017

y=kx
from the info given k=4
hence when x=-3 y=-12

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