6.1-6.4 Review

Simplify the expression. Write your answer using only positive exponents:
 $8^0$  

•  $0$  

•  $8$  

•  $-8$  

•  $1$  

Simplify the expression. Write your answer using only positive exponents:
 $7^{-1}$   

•  $\frac{1}{7}$  

•  $-\frac{1}{7}$  

•  $7$  

•  $-7$  

Simplify the expression. Write your answer using only positive exponents:
 $b^3\cdot b^8$  

•  $2b^{11}$  

•  $b^5$  

•  $b^{11}$  

•  $b^{24}$  

Simplify the expression. Write your answer using only positive exponents:
 $\left(x^2\right)^{-5}$  

•  $\frac{1}{x^{10}}$  

•  $x^{10}$  

•  $x^{-3}$  

•  $\frac{1}{x^3}$  

Simplify the expression. Write your answer using only positive exponents:
 $\left(\frac{8r^{-4}}{s^{-5}}\right)^2$  

•  $\frac{16r^{-8}}{s^{-10}}$  

•  $\frac{64s^{10}}{r^8}$  

•  $\frac{64r^8}{s^{10}}$  

•  $\frac{16s^{10}}{r^8}$  

Which graph below represents the following exponential function:
 $y=1\left(\frac{1}{3}\right)^x$  

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Which graph below represents the following exponential function:
 $y=2\left(3\right)^x$  

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For exponential functions,  $y=ab^x$  , what does  $a$   do? Select all that apply (3 answers).

• It's the amount you multiply by

• It's the y-intercept

• It stretches / shrinks the graph

• It reflects the graph over the x-axis

Determine whether the table represents an exponential growth function, an exponential decay function, or neither:

• Exponential Growth

• Exponential Decay

• Neither

Determine whether the table represents an exponential growth function, an exponential decay function, or neither:

• Exponential Growth

• Exponential Decay

• Neither