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Liono4ka [1.6K]
4 years ago
14

The function f(x) varies directly with x, and f(x)=12 when x=8

Mathematics
1 answer:
lozanna [386]4 years ago
6 0
The answer would be d.

You can solve this by changing it up a little, such as changing it to f • x = 12
you can then divide by 8, because x = 8.
You're then left with f = 12/8 or 3/2
multiply by x again on both sides, and voila, f(x)=3/2x
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