Question

Which of the following relations are NOT functions? Select all that apply.*
(1,3), (3,7), (5,11), (7,15), (9,19)
(1,3), (1,7), (5,11), (5,15), (9,19)
(-2,4), (-1,1),(0,0), (1,1), (2,4)
(2,4), (1,1),(0,0), (1,-1), (2,-4)
(6,3), (4,1), (2,1),(0,-1), (-2,-3)
(1,3), (3,11), (3,7), (7,15), (9,19)
O (1,3), (3,7), (5,11), (9,15), (9,19)

Answer 1

Answer:

Going from 1 to 7. The not functions are 2,4,6, and 7

Step-by-step explanation:

How you can determine if its a function is if all x values are different. Vertical line test.

Answer 2

Using the function concept, it is found that these following relations are not functions:

(1,3), (1,7), (5,11), (5,15), (9,19)

(2,4), (1,1),(0,0), (1,-1), (2,-4)

(1,3), (3,11), (3,7), (7,15), (9,19)

(1,3), (3,7), (5,11), (9,15), (9,19)

• A relation is a function if one input is mapped to only one output.

• In the relation (1,3), (1,7), (5,11), (5,15), (9,19), the input 1 is mapped to the output 3 and to the output 7, so it is not a function.
• In the relation (2,4), (1,1),(0,0), (1,-1), (2,-4), the inputs 2 and 1 are mapped to multiple outputs, so it is not a function.
• In the relation (1,3), (3,11), (3,7), (7,15), (9,19), the input 3 is mapped to the outputs 11 and 7, so it is not a function.
• In the relation (1,3), (3,7), (5,11), (9,15), (9,19), the input 9 is mapped to the outputs 15 and 19, so it is not a function.

A similar problem is given at https://brainly.com/question/12463448