Model the Curve with a Cosine Function $P = \frac { 1 } { 3 }$

question 28

Multiple Choice

Model the curve with a cosine function.
Note that the period of the curve is $P = \frac { 1 } { 3 }$ and its range is $[ - 1,1 ]$ .

• A) \(f ( x ) = \cos ( 6 x )\)
• B) \(f ( x ) = \cos ( 6 \pi x )\)
• C) \(f ( x ) = \cos \left( \frac { x } { 6 } \right)\)
• D) \(f ( x ) = \cos \left( \frac { \pi x } { 6 } \right)\)
• E) \(f ( x ) = 6 \cos ( \pi x )\)

---

Definitions:

Light Bulb

An electric device that produces light from electricity, consisting of a filament held within a glass sphere that illuminates when current passes through it.

Computer Keyboard

A computer keyboard is a peripheral input device used to input text and commands into a computer system via the press of keys.

Crumbs

Small fragments or pieces of bread, cake, or other baked goods, often left after eating.

Rotting Boards

Wood planks that have decayed due to exposure to moisture and fungi, compromising their structural integrity.