# Answer to Question #20548 in Trigonometry for Kristen Woods

Question #20548

Determine if the given relation is function or not. Give its domain and range.

1a. (1,5) (2,6) (3,7) (4,8)

1b. (-1,2) (-1,3) (2,4)

1a. (1,5) (2,6) (3,7) (4,8)

1b. (-1,2) (-1,3) (2,4)

Expert's answer

1. this is a function

domain: (1,2,3,4)

range: (5,6,7,8)

2. This is not a function, asyou have correspondence -1 to two values.

domain: (1,2,3,4)

range: (5,6,7,8)

2. This is not a function, asyou have correspondence -1 to two values.

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