Exponential Growth and Decay

What is the base if the common ratio is 1.67?

• 1.67

• 2.67

• 0.0167

• 0.167

What is the base if it quadruples every day?

• 2

• 1/4

• 4

• 3

What is the base if it is 145% of the original?

• 0.145

• 14.5

• 145

• 1.45

What is the base for a half-life?

• 1.5

• 1/2

• 2

• 1/4

Acetaminophen has a half-life every hour. If you take 400mg, how much is left in your body after 2 hours?

• 400mg

• 1600mg

• 100mg

• 200mg

The population of Coweta is currently 159,000 and is growing at a common ratio of 1.9, what will the population be in 4 years? **Round to the nearest whole number.

• 2,544,000 people

• 2,000,000 people

• 207 people

• 2,072,104 people

James' 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.

• 70(2)³⁵
• 70(2)⁵
• 2(70)⁵
• 5(70)²

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

• Growth
• Decay

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

• Growth
• Decay

In an exponential function, what does the 'a' represent? 

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO