BHS Writing Exponential Function Notes

Exponential Functions

Draw

Draw an example of exponential growth.

Match

Here are some words that you might see in Exponential questions.

Match the following

• Doubles

• Triples

• Half

• Ten Fold

• Five times

200%

300%

50%

1000%

500%

• 200%

• 300%

• 50%

• 1000%

• 500%

Drag and Drop

Here are a few more word you could see in your questions. One Tenth - ​

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One Fourth - ​

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Three Quarters - ​

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Quadrupled - ​

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Drag these tiles and drop them in the correct blank above

25%

10%

75%

400%

0.10%

3%

40%

30%

Let's try it!

Multiple Choice

What is the initial amount in the function below?

$$f\left(x\right)\ =\ 4\left(1.5\right)^x$$

• 4

• 50%

• 1.5

• .5

Multiple Choice

Does the function below show growth or decay?

$$f\left(x\right)\ =\ 4\left(1.5\right)^x$$

• Exponential Growth

• Exponential Decay

Multiple Choice

The amount of medication in a patient's bloodstream decreases exponentially from the time the medication is administered. A patient is administered a 300mg dose of medication that decreases by 25% in the bloodstream each hour. Which function models this situation?

• $$f\left(x\right)\ =\ 300\left(0.25\right)^x$$

• $$f\left(x\right)\ =\ 25\left(300\right)^x$$

• $$f\left(x\right)\ =\ 300\left(0.75\right)^x$$

• $$f\left(x\right)\ =\ 25\left(0.75\right)^{300}$$