Understanding and applying the laws of exponents to numerical expressions (integral exponents)

Negative Exponent Rule states: you must change the exponent to a positive by doing what?

• just change it to positive

• move to the bottom of fraction bar

• move it to the opposite side of fraction bar

Write each expression using a positive exponent. Then evaluate. 
 $4^{-3}$  

•  $64$  

•  $\frac{1}{64}$  

•  $12$  

•  $\frac{1}{12}$  

What is 15¹

• 15

• 1

• 0

(-2)⁰

• 1
• -2
• 0
• 2

what is the value of x^-y when x=5 and y=2

• 1/25

• 25

• -25

• 0.86

Mathematical Equivalence

OFF

 $x^{-5}$  =

•  $\frac{1}{x^{-5}}$  

•  $\frac{1}{x^5}$  

•  $\frac{x^5}{1}$  

•  $\frac{x^{-5}}{1}$  

 $\left(\frac{4}{5}\right)^2$  

•  $\frac{34}{5}$  

•  $\frac{34}{67}$  

•  $\frac{16}{25}$  

•  $\frac{8}{10}$  

 $-2x^{-3}$  

•  $\frac{1}{2x^3}$  

•  $-\frac{1}{2x^3}$  

•  $2x^3$  

•  $-\frac{2}{x^3}$