2.1: Represent Relations and Functions HW: p.76 (4-20 even, all)

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2.1: Represent Relations and Functions HW: p.76 (4-20 even, 21-23 all) Algebra II 2.1: Represent Relations and Functions HW: p.76 (4-20 even, 21-23 all)

What is a relation? A relation is a mapping, or pairing, of input values with output values. The set of input values is the domain, and the set of output values is the range. (Typically the domain is represented as x and the range is represented as y.)

Identify the domain and range for the following relation Identify the domain and range for the following relation. Represent the relation using a table and a mapping diagram. 1.) (-4, 3), (-2, 1), (0, 3), (1, -2), (-2, -4)

Identify the domain and range for the following relation Identify the domain and range for the following relation. Represent the relation using a table and a mapping diagram. 2.) (-2, -3), (-1, 1), (1, 3), (2, -2), (3, 1)

What is a function? A function is a relation for which each input has exactly one output. If any input has more than one output, then the relation is not a function.

Determine if the relation is a function. 1.) 2.)

Determine if the relation is a function. 3.) 4.)

Determine if the relation is a function. 5.)

Determine if the relation is a function. 6.) (-1, -1), (2, 5), (4, 8), (-5, -9), (1, -1)

Determine if the relation is a function. 7.) (2, -5), (-2, 5), (-1, 4), (-2, 0), (3, -4)

Determine if the relation is a function. 8.) 9.) 10.)