Logarithm Review

What does the a in y=a(1+r)^x  represent?

• Time
• Rate
• Slope
• Initial Amount

Tags

CCSS.HSF.LE.B.5

Is this exponential growth or decay?

• Growth
• Decay
• Linear

Tags

CCSS.HSF-IF.C.7E

Does the following represent growth or decay?
y=3^x

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B

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

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

Tags

CCSS.HSF.LE.A.2

Steve deposited $5,000 in a savings account that pays 4% interest compounded annually.

Which equation could be used to find the value of the account after 3 years?

• A = 5,000(1 + 4)³

• A = 5,000(1 + 0.04)³

• A = 5,000(1 + 0.4) x 3

• A = 5,000(0.04)³

Gary deposited $500 in an account that earns 3% interest compounded annually.

How much interest will the account earn after 6 years?

• $90.00

• $100.00

• $97.03

• $109.20

Tags

CCSS.HSF-LE.A.1C

Rewrite log₂8 = 3 in exponential form

• 2⁸ = 3

• 2³ = 8

• 3² = 8

• 8³ = 2

Tags

CCSS.HSF.BF.B.5

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81
• log₈₁3 = 4
• log₃81 = 4
• log₄81 = 3

Tags

CCSS.HSF.BF.B.5

Evaluate.
log₅(625)

• 4
• 2
• 3
• 10