Rowad Grade 9 Lesson 6.3 and 6.5

What characterizes an exponential growth function?

• It increases by a fixed amount over each interval
• It increases by a fixed percent over each interval
• It decreases by a fixed percent over each interval
• It remains constant over time

How does an exponential decay function behave?

• It increases by a fixed percent over each interval
• It decreases by a fixed percent over each interval
• It decreases by a fixed amount over each interval
• It fluctuates randomly over time

If a quantity decreases by 10% each year, what type of function models this behavior?

• Linear growth
• Exponential growth
• Exponential decay
• Quadratic decay

How is the growth factor of an exponential growth function calculated?

• It is equal to the growth rate
• It is equal to 1 minus the growth rate
• It is equal to 1 plus the growth rate
• It is equal to the growth rate squared

If the growth rate of an exponential function is 0.15 (15%), what is the growth factor?

• 0.15
• 0.85
• 1.15
• 1.85

Which type of function best describes a population that grows by a fixed number each year?

• Exponential growth
• Quadratic growth
• Linear growth
• Logarithmic growth

If a population grows by 1,000 people annually, what is the key characteristic of this growth?

• The growth rate is a fixed percentage
• The growth amount is a fixed number
• The growth accelerates over time
• The growth is unpredictable

What is simple interest?

• Interest paid only on the principal amount
• Interest paid on both the principal amount and accumulated interest
• Interest paid only on the accumulated interest
• Interest paid at a decreasing rate over time

Compound interest is calculated on:

• Only the principal amount
• Only the accumulated interest
• Both the principal amount and the accumulated interest
• Neither the principal amount nor the interest

Which formula represents compound interest?

• 𝐴 = 𝑃 + 𝑟𝑡
• 𝐴 = 𝑃(1 + 𝑟𝑡)
• 𝐴 = 𝑃 (1 + 𝑟/𝑛)^(𝑛𝑡)
• 𝐴 = 𝑃 ∙ 𝑟 ∙ 𝑡