Select the sets that are not functions.

A = { (1, 2), (2, 3), (3, 4), (4, 5) }

B = { (1, 2), (2, 1), (3, 0), (4, - 1) }

C = [ (-1, 3), (0, 3), (1, 3), (2, 3) }

D = { (1, 1), (1, 2), (1, 3), (1, 4);

E = { (6,2), (7,3), (6,-1), (5,4) }

Question

Mathematics

Javier Hess

28 May, 16:11

Select the sets that are not functions.

A = { (1, 2), (2, 3), (3, 4), (4, 5) }

B = { (1, 2), (2, 1), (3, 0), (4, - 1) }

C = [ (-1, 3), (0, 3), (1, 3), (2, 3) }

D = { (1, 1), (1, 2), (1, 3), (1, 4);

E = { (6,2), (7,3), (6,-1), (5,4) }

+2

Answers (1)

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Elianna · Answer 1

D, E are not functions

Step-by-step explanation:

A function is a relation in which every input has not more than one output. But the output of the inputs may be same. Here in D the input 1 has 4 different outputs as 1,2,3,4. So its not a function. Similarly in E 6 has 2 outputs as 2 and - 1. For remaining sets the inputs has only one output. so they are functions.

Select the sets that are not functions.A = { (1, 2), (2, 3), (3, 4), (4, 5) }B = { (1, 2), (2, 1), (3, 0), (4, - 1) }C = [ (-1, 3), (0, 3), (1, 3), (2, 3) }D = { (1, 1), (1, 2), (1, 3), (1, 4);E = { (6,2), (7,3), (6,-1), (5,4) }

Select the sets that are not functions.

A = { (1, 2), (2, 3), (3, 4), (4, 5) }

B = { (1, 2), (2, 1), (3, 0), (4, - 1) }

C = [ (-1, 3), (0, 3), (1, 3), (2, 3) }

D = { (1, 1), (1, 2), (1, 3), (1, 4);

E = { (6,2), (7,3), (6,-1), (5,4) }