Exponential Relationships Retest Review

What is the equation that models this graph?

• y = 2(3)^x
• y = 3(2)^x
• y = 3(½)^x
• y =½(3)^x

Tags

CCSS.HSF.LE.A.2

Find the next three terms: 4, 12, 36, 108, ...

• 324, 972, 2916
• 972, 2916, 8748
• 405, 1215, 3645

Tags

CCSS.HSF.BF.A.2

A powerful computer costs $1500, but on average, it loses 20% of its value each year. How much will it be worth 4 years from now?

• $1420.00

• $614.40

• $200.58

• $1200.00

Tags

CCSS.HSF.BF.A.2

Which of the equations below represent this table?

• y=3⋅(36)^x
• y=36⋅(3)^x
• y=3⋅(⅓)^x
• y=36⋅(⅓)^x

Tags

CCSS.HSF.LE.A.2

Simplify √48

• 4√2

• 6√3

• 4√3

• 4√2

Simplify $k^{-6}$  

•  $\frac{k}{6}$  

•  $\frac{6}{k}$  

•  $k^6$  

•  $\frac{1}{k^6}$  

Tags

CCSS.8.EE.A.1

In the equation y=2(5)^x , the a value (y-intercept) is...

• 356

• 5

• 10

• 2

Tags

CCSS.HSF.LE.B.5

The original value of a painting is $1400, and the value increases by 9% each year. Write an exponential growth function to model this situation.

• y=1400(1.09)^x
• y=1.09(1400)^x
• y=1400(.91)^x
• y=1.09^x

Tags

CCSS.HSF.LE.A.2

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

Find the common ratio: 64, -16, 4, -1, ...

• r = -8
• r = -1/4
• r = -4
• r = 4

Tags

CCSS.HSF.BF.A.2