Explanation

A sinusoidal model represents real-world periodic behavior.

General form:
y = A sin(Bx − C) + D

Where:

• A = amplitude

• B = affects period

• C = phase shift

• D = vertical shift

Used for:

• Temperature changes

• Sound waves

• Tides

• Daylight hours

Quiz

1. What does A control?

2. What does D represent?

3. What does B affect?

4. Are sinusoidal models periodic?

5. Name one real-world example.

Answer Key

1. Amplitude

2. Vertical shift

3. Period

4. Yes

5. Tides (or similar)