Question

Which of the sets of ordered pairs represents a function?

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

B = {(2, 2), (3, −2), (9, 3), (9, −3)}
@pooja195

Answer 1

in order to relation be a function x values shouldn't repeat

Answer 2

so the answer is b?

Answer 3

Which of the sets of ordered pairs represents a function?

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

B = {(2, 2), (3, −2), (9, 3), (9, −3)}

Only A
Only B
Both A and B
Neither A nor B

Answer 4

(x,y) first number represent x-coordinate

Answer 5

is the final answer B?

Answer 6

why is it not A ?

Answer 7

because on this group : A = {(−4, 5), (1, −1), (2, −2), (2, 3)} , the number 2 appears twice in the x coordinate @Nnesha

Answer 8

yep that's right!!
so now focus on B set

Answer 9

?

Answer 10

2 appears twice in first set right
now Set B is there any x number that appears more than onc ?

Answer 11

no

Answer 12

mhmm

Answer 13

so group B is the only function?

Answer 14

\[\huge\rm B = {(\color{reD}{2}, 2), (\color{reD}{3}, −2), (\color{reD}{9}, 3), (\color{reD}{9}, −3)} \] any x values appears more than once ?

Answer 15

oh oops! yes

Answer 16

^

Answer 17

so D?

Answer 18

yep

Answer 19

k. thx can u help with a couple more? @Nnesha

Answer 20

i'll try.