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We will learn 5 other types (there are more than 5) variation:
a) y varies directly with the square of x
b) y varies inversely with the square of x
c) y varies directly with the square root of x
d) y varies inversely as x^3
e) y varies inversely with the forth root of x

Next video in this series can be seen at:
https://youtu.be/0lk8ToHrxdc