Question

Which relation is a function?

A.
x −2 −2 0 1 8
y 3 6 0 0 9


B.
x 3 5 7 14 14
y −9 5 −9 1 2


C.
x −3 4 5 9 12
y 1 −2 −2 0 7


D.
x −7 −5 6 8 8
y −3 8 1 1 −9

Answer 1

@TheSmartOne could you help?

Answer 2

i can help

Answer 3

ok :)

Answer 4

its not a

Answer 5

I think it's C

Answer 6

Correct!

Answer 7

its c be cause a x cannot have two y's in a function

Answer 8

Thank you!!

Answer 9

if i helped a medal would be appreciated :)

Answer 10

thanks!

Answer 11

Welcome... Could you help with 2 more?

Answer 12

sure

Answer 13

What is the value of the function when x = 1?

y =

A graph of a function. The function graph goes through point negative 4, 0 and point 1, 2.

Answer 14

https://static.k12.com/calms_media/media/1524000_1524500/1524408/1/1e737cd521d591d9611251d5018aa35a25d604d7/MS_IMC-140901-106141.jpg

Answer 15

y= 2

Answer 16

How?

Answer 17

are there any choices on this one?

Answer 18

No

Answer 19

ok so the question is asking when x=1 what does y= okay? now look at the graph and find where x=1. when you find it look at the y it is 2.

so therefore, the answer is y=2

Answer 20

Thanks Again!!

Answer 21

1 more?

Answer 22

yeah sure

Answer 23

What is the value of the function y = 0.5x – 10 when x = 9?

y =

Answer 24

ok any choices?

Answer 25

Nope

Answer 26

ok give me a sec

Answer 27

K

Answer 28

so the answer is -5.5

Answer 29

ill explain the steps now

Answer 30

thats what I had

Answer 31

Lol!

Answer 32

cool!

Answer 33

plug in 9 in x.
y=0.5x9 - 10.
4.5 - 10= -5.5

Answer 34

Thank you for helping me!!

Answer 35

no problem fan me so when you need help next time i can help!

Answer 36

I got 100%

Answer 37

yay :)