Exponential Functions - Review (Unit Test)

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

Tags

CCSS.HSF.LE.A.2

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

• 9766

• 9006

• 9765

• 5433

What does a₁ represent?

• Any term

• First term

• Last term

Tags

CCSS.HSF.BF.A.2

What are the next 3 terms in the following geometric sequence:

512, 256, 128, ___, ___, ___, ...

• 1024, 2048, 4096

• 32, 8, 2

• 64, 32, 16

• 92, 66, 38

Tags

CCSS.HSF.BF.A.2

Is this sequence arithmetic, geometric, or neither?
{26, 22, 18, 14, ...}

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

Write the expression in radical form.
x^7/2

• √x⁷
• 7√x²
• 7x²
• ∛x⁷

Tags

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2

Simplify
 $\frac{24x^6}{12x^{-8}}$  

•  $\frac{2}{x^2}$  

•  $-2x^2$  

•  $2x^2$  

•  $2x^{14}$  

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

Is this exponential growth or decay?

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B