Transcript -4.7 Negative Exponents

Simplify each Expression
a a
5
7
12
x
4
x
d 
3 5
If you use the quotient of powers,
what do you get?
m
a
mn

a
n
a
3
y
5
y
5
x
9
x
z
8
z
Section 4.7
Negative Exponents
Evaluate the following.
24 = ____
23 = ____
22 = ____
21 = ____
20 = ____
Evaluate the following.
24 = _16_
23 = __8_
22 = __4_
21 = __2_
20 = __1_
2-1 = ____
2-2 = ____
2-3 = ____
2-4 = ____
Negative Exponents
a
n
1
 n
a
Write each expression
using a positive exponent.
Write each expression
using a positive exponent.
Write each expression
using a negative exponent
(other than negative one).
1
144
Write each expression
using a negative exponent
(other than negative one).
Write each expression
using a negative exponent
(other than negative one).
1
81
Evaluate each expression.
if
4
Evaluate each expression.
if
Evaluate each expression.
3x
2
if
x=9
Homework
P 183-184 14-43 all; 47-52 all