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Solve the numerical comparison problem of power function in senior one mathematics
9 is bigger than 3, which is bigger, 9, how is it made?

You should find 9 on the number axis, and then find 3 to compare the sizes.

Now you want to treat it as a commercial law, that is, to compare the sizes by division, that is, 9÷3, the quotient is greater than 1, and 9 is greater than 3. If 3÷9, the quotient is less than 1, and 3 is less than 9.

However, this example is all positive. What about the division of two negative numbers? Is the quotient greater than 1 or the previous number? How about the division of positive and negative numbers? Is it always the last number? Obviously, the above summary has many limitations and is not easy to popularize.

In short: as a commercial law, it needs to be discussed in different situations.