In CCSS Mathematics, which domain covers functions, their relationships, and interpreting function graphs?

• A. Geometry
• B. Reading
• C. Functions
• D. Statistics and Probability

Answer: (C)

The Functions domain is the one that focuses on understanding how one quantity depends on another, how to represent that relationship as a function, and how to read and interpret graphs of those functions. It emphasizes the idea of input and output, uses function notation, and looks at different representations like graphs, tables, and equations to describe how the output changes as the input changes. Interpreting a function graph involves examining features such as where the graph rises or falls, the rate of change, and which input values correspond to particular outputs. The other domains cover different areas: Geometry deals with shapes and spatial properties, Reading is not a math focus, and Statistics and Probability centers on data analysis and chance rather than the study of input-output relationships and graphs of functions.