Students distinguish relations as linear or non-linear, and as functions or not functions in this engaging activity.
This card sort has 25 relations cards, which include tables of values, lists of ordered pairs, equations, mapping diagrams, and graphs. Students must sort the cards among four categories: Linear Functions, Nonlinear Functions, Linear but not Functions, and Nonlinear not Functions
Great for partners or groups!
Answer key is included.
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Function or Not? Powerpoint
8th Grade Math + Algebra I Mega Bundle
Common Core Standards
Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.
Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the function A = s2 giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4) and (3,9), which are not on a straight line.
Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x).