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Y is directly proportional to the square of x. Find percentage increase in value of y when value of x is doubled
9 years ago

Answers

Steve
y = kx^2

when x is doubled, you have

k(2x)^2 = 4kx^2 = 4y
so, y has grown by 300%
9 years ago
PsyDAG
(2x)^2 --> 4Y

4Y is 300% greater than Y.
9 years ago

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