The document discusses rational exponents and radical expressions. It explains that a radical expression with an index of 3 can be written as a cube root, and gives the example of 5^3 = 125. It also shows that a fraction exponent raises the number to the power of the denominator, using the example of 2^(1/9) = 2^(1/3). The last part provides instructions for classroom activities on cross sections and homework assignments to study for an upcoming test.

1. FRACTION EXPONENTS
5.7 RATIONAL EXPONENTS

2. By definition of Radical Expression.
The index of the Radical is 3.
RADICAL EXPRESSION AND EXPONENTS
5
125
125
5 3
3

 so
Radical expression and Exponents

3. How would we simplify
this expression?
2
1
9
The number can be written as a Radical
expression, with an index
of the denominator.
What does the fraction exponent
do to the number?

2
9

4. Mon., 8/29/2022
Do Now/Warm-Up: Quick Check (turn in)
Today’s lesson (Cross Sections Cont.)
Journal WS #2 (due: Today)
HW: Study for Chapter 8 Test
Check HW (pg. 622 and 634)

5. McGraw pg. 622

6. McGraw pg. 622

7. McGraw pg. 634