Learning Resources

Investigation 5:Square-Root Functions and Discontinuities

Step C:

Note: Once you view the graph of , as a challenge to yourself, manually draw the graph of . This exercise is a good indicator of your understanding of section 3.1.

When determining values for which this function is defined, there are two things to take into account.

1. Division by zero is unacceptable.
2. Taking the square root if a negative number in the real number system in not possible.