Questions

1. Six basic functions were mentioned at the start of this section. We've just seen that squaring function is even and the cubing function is odd. Classify each of the other four basic functions as even, odd, or neither.

2. Give intervals over which the following function is increasing, decreasing, or constant.

3. Make a graph that shows the cost of mailing a first class letter.

4. Is the following a function of x?