Unit 2 Log Review

What are the transformations of this graph?

• Right 1 Up 5
• Right 1 Down 5
• Left 1 Up 5
• Left 1 Down 5

Find the inverse of y=5^x-8

• y=log₅(x-8)
• y=log₅(x+8)
• y=log₈(x-5)
• y=log₈(x+5)

Tags

CCSS.HSF-BF.B.4A

Find the inverse of the equation

• 2^(x-9)+5=y
• 2^(x+9)-5=y
• 5^(x-9)-5=y

Tags

CCSS.HSF-BF.B.4A

Your shiny new boat cost $7650.  The depreciation for your boat is 14% per year. Estimate the value of your vehicle in 3 years. What is the equation that models this problem?

• y= 7650(.14)³
• y= 7650(.86)³
• y= 7650(1+.86/1)^3*1

An amount of $2,000 is deposited into a bank paying an annual interest rate of 2.85% compounded continuously. How long will it take for the money to double?

• 21.22 years
• 24.321 years
• 20.12 years
• Not here

Tags

CCSS.HSF.LE.A.4

Tags

CCSS.HSF.LE.A.4

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

Reese is solving the equation log_2x291 = 8. Which exponential equation can she use to solve the problem?

• 2x²⁹¹ = 8
• 8²⁹¹ = 2x
• 291⁸ = 2x
• 2x⁸ = 291

Tags

CCSS.HSF.BF.B.5

Describe how the function y = 2^x is transformed to make y = 2^{x - 5} + 3

• Translated left 5 and down 3

• Translated right 5 and down 3

• Translated left 5 and up 3

• Translated right 5 and up 3

What value of x will make the following equation true?

• 625/16
• 12.2
• 32
• 10

Tags

CCSS.HSF.BF.B.5