Question

Which relation is a function?
a.https://static.k12.com/nextgen_media/assets/243029-VHS_ALG_S2_01_L203_L303_LQ_2D.gif
b.https://static.k12.com/nextgen_media/assets/243027-VHS_ALG_S2_01_L203_L303_LQ_2B.gif
c.https://static.k12.com/nextgen_media/assets/243028-VHS_ALG_S2_01_L203_L303_LQ_2C.gif
d.https://static.k12.com/nextgen_media/assets/243026-VHS_ALG_S2_01_L203_L303_LQ_2A.gif

Answer 1

i might be D idk

Answer 2

Apply the vertical line test

Answer 3

when i applied it D makes sense ....

Answer 4

if you can draw a vertical line through more than one point anywhere in the graph it is not a function.

Answer 5

D is not a function

Answer 6

a relation is a function when there is only one output (y-value) for any given input (x-value)

Answer 7

as you draw a vertival line through the 2 points (-1,3) and (-1,-1)

Answer 8

wait no it might be c

Answer 9

Hint: the vertical line might be the y-axis.

Answer 10

not C

Answer 11

so not c nor d.... hmm

Answer 12

read the responses so you don't just pick one

Answer 13

A!?!

Answer 14

why?

Answer 15

are you sure?

Answer 16

has a y intercept but b has one too but a makes more sense

Answer 17

repeat
a function when for any x value only ONE y-value

Answer 18

do you understand the vertical line test @welshfella mentioned?

Answer 19

- the above is NOT a function The vertical line passes through 2 points

Answer 20

i see that b has points like that

Answer 21

right!!

Answer 22

OHH!! SO ITS B!?!

Answer 23

?????

Answer 24

please read carefully!!

Answer 25

b is not a function

Answer 26

B has points like that for that x there are 2 y's so B is NOT a function