Exploring the Mechanics of Compound Interest

This video tutorial on financial algebra explores the concept of compound interest, a key factor in wealth accumulation. It explains different types of compounding: annual, semiannual, quarterly, and daily. Through examples, the video demonstrates how compounding frequency affects interest earnings. The tutorial also covers real-life applications, such as how banks use daily compounding. By understanding these concepts, viewers can see how compounding can work for or against them in financial scenarios.

What is compound interest?

• Interest calculated without adding the principal

• Interest on the initial deposit and also on the accumulated interest from previous periods

• A fixed amount of interest regardless of the deposit

• Interest on the initial deposit only

What does annual compounding mean?

• Interest is compounded every month

• Interest is compounded daily

• Interest is compounded every six months

• Interest is compounded once a year

How often is interest compounded in semiannual compounding?

• Every month

• Twice a year

• Once a year

• Every quarter

What is the effect of more frequent compounding periods on the interest earned?

• Increases the interest

• Decreases the interest

• No effect on the interest

• Interest is only affected by the principal amount

In the example of Mila, what would her new balance be after one year with an annual compounding at 6% on a $1000 deposit?

• $1,060.90

• $1,006

• $1,000

• $1,060

How does quarterly compounding compare to semiannual compounding in terms of interest earned?

• Both earn the same amount of interest

• Quarterly earns less interest

• Cannot be determined without the interest rate

• Quarterly earns more interest

What is the new balance after one day of daily compounding at 6% on a $1000 deposit?

• $1,000.16

• $1,000.06

• $1,006.00

• $1,000.60

How does daily compounding affect the growth of an investment compared to less frequent compounding?

• Slower growth

• Faster growth

• No difference in growth

• Initial rapid growth then stabilizes

What impact does daily compounding have on a credit card balance compared to an investment account?

• Increases the debt faster than it grows the investment

• Reduces the credit card debt

• Grows the investment faster than it increases the debt

• Has no effect on the credit card balance

In the practical scenario, what was James' balance at the end of July 12th after daily compounding and various transactions?

• $1,414.96

• $1,000.68

• $1,069.07

• $1,234.98