Provide an Appropriate Response $$\text { What does the graph of the equation } \varphi = \frac { \pi } { 2 } \text { look like? }$$

question 3

Multiple Choice

Provide an appropriate response.
- $$\text { What does the graph of the equation } \varphi = \frac { \pi } { 2 } \text { look like? }$$

• A) The y-axis
• B) The z-axis
• C) The xz-plane
• D) The xy-plane

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Definitions:

Independent Variable

In experimental research, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.

Latent Factor

An underlying variable that is not directly observed but influences patterns of correlation between observed variables.

Control Factor

An element or variable that is manipulated or held constant in a study or experiment to determine its effect on the outcome.

Independent Variable

In an experiment, the variable that is manipulated or changed to observe its effect on the dependent variable.