Question

which of the following relations is not a function?
a. (-1, 4), (1, 2), (7, 1), (-6, 5)

b. (7, 4), (-1, 2), (1, 1), (-6, 2)

c. (-6, 4), (1, 3), (-1, 1), (7, 2)

d. (1, 4), (-1, 2), (1, 1), (-6, 2)

Answer 1

Answer:

d

Step-by-step explanation:

it has two 1s for 2 x values