Unit 7 Test Review

Hannah invested $4000.  How much money will she have in 15 years if the interest rate of 6% is being compounded continuously? 

• 9839.42
• 32412.71
• 9838.41
• 32412.72

Suppose that you start with $10,000 for your child's college fund. In thirty-six months' time, how much money will you have if you invest in an instrument yielding 3.5% interest, compounded monthly? 

• 11105.41
• 35189.62
• 35189.61
• 11105.42

Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. If no other money is added or withdrawn from the account, how much will be in the account after 10 years?

• $3122.18
• $4994.50
• $4440.73
• $86,776.40

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

• 14327
• 4309
• 839
• 7680

Tags

CCSS.HSF-LE.A.1C

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

Tags

CCSS.HSF.LE.A.2

2³ⁿ = 4

• 2
• 3
• 2/3
• 4

8^3x+3 = 8⁶

• x=28
• x=3
• x=1
• x=12

Expand log_b(xy).

• log_bx+log_by
• log_bx-log_by
• log_bx*log_by
• log_bx/log_by

Expand log_b(x/y).

• log_bx-log_by
• log_bx+log_by
• log_bx*log_by
• log_bx/log_by

Expand log_b(xⁿ).

• nlog_bx
• (log_bx)ⁿ
• xⁿlog_bx
• log_b(xⁿ)