Question

which term gives the number of cycles of a periodic function that occur in one horizontal unit?
○ vertical shift
○ period
○ frequency
○ phase shift

Explanation:

To solve this, we analyze each term:

• Vertical shift: Changes the graph's vertical position, not related to cycles per unit.
• Period: Time (or horizontal length) for one cycle, not the number of cycles.
• Frequency: Defined as the number of cycles in one horizontal unit (e.g., per second, per unit length).
• Phase shift: Horizontal shift of the graph, not related to cycle count.

So frequency matches the description.

Answer:

The option with "frequency" (the third option from the top, or the one labeled "frequency" among the choices).