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poizon [28]
3 years ago
5

If f(x) varies directly with x^2, and f(x)=75 when x=5, find the value of f(8)

Mathematics
1 answer:
Anton [14]3 years ago
4 0
F(x) = x² + c
f(5) = 25 + 50
f(8) = 64 + 50 = 114

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