8.AT.C: Reason about functions

Reason about functions

8.AT.C.6Determine whether a relationship is a function by analyzing whether each input is assigned to exactly one output. a. Given a clearly defined set of input-output pairs in a table, mapping, or real-world description, determine whether the relationship is a function and explain why. b. Given a graph, identify input-output pairs and determine whether the graph represents a function.8.AT.C.7Compare the properties (i.e., rate of change, intercepts) of two linear functions each represented in a different way (algebraically, graphically, numerically in tables, or by narrative descriptions).8.AT.C.8Identify whether a function is linear or non-linear given equations, graphs, or input-output pairs, and provide a justification using reasoning about the constant rate of change and its relationship to proportional reasoning.

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