Exponential 10 (?) Reteach

 Which of the following shows the fraction: $\frac{-4\left(a^{-2}\right)^2}{-20a^5}$  in simplest form, only using positive exponents

•  $5a^9$  

•  $-\frac{1}{5a}$  

•  $\frac{1}{5a}$  

•  $\frac{1}{5a^9}$  

•  $-5a^9$  

Answer explanation

• $\frac{2}{3x^{12}p^2}$

• $-\frac{2}{3x^{12}p^2}$

• $\frac{-2p^4}{x^{12}}$

• $\frac{-2p^2}{x^8}$

• $\frac{2p^2}{x^{12}}$

Answer explanation

What is the equation that represents the exponential function in the image below?

• y=3(½)^x

• y=3(2)^x

• y=(2)^x

• y=2(3)^x

• y=(2)^x+3

Answer explanation

Which of the following functions represent the graph shown above, choose all that apply:

• $f\left(x\right)=10\left(\frac{1}{2}\right)^x$
  

• $f\left(x\right)=10\left(.5\right)^x$

• $f\left(x\right)=\frac{1}{2}\left(10x\right)$
  

• $f\left(x\right)=2\left(10\right)^x$

• $f\left(x\right)=10\left(2\right)^x$

Answer explanation

 $f\left(x\right)=2^{\left(x+1\right)}+3$  

Which of the following graphs represents the function above?

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• 
• 
• 
• 

Answer explanation

Original Function y=2(3)^x

Which function shows a horizontal translation right 3 units.

• y=2(3)^x+3

• y=2(3)^x-3

• y=2(3)^x + 3

• y=2(3)^x - 3

• y=2(6)^x

Tags

Exponentials

• f(t)=23,000-15(t)

• f(t)=23,000(1.15)^t

• f(t)=23000(.15)^t

• f(t)=23000(.85)^t

• f(t)=.85(t)+23000

Answer explanation

An element with mass 730 grams decays by 27.6% per minute. How much of the element is remaining after 12 minutes, to the nearest 10th of a gram?

Answer explanation

A town has a population of 2000 and grows at 4.5% every year. What will be the population after 13 years, to the nearest whole number?

Answer explanation

You invest $500 in a bad stock. The value decreases 2% each year instead of gaining money. You decide after 6 years to pull your money out, how much will the bank give you the nearest cent if there were no fees.

Answer explanation