Question

Functions
(Medal will be given to right answer)

Answer 1

Do the values In the table represent a linear function? If so, what is the function rule?

A. The values do not show a linear function
B. Yes, they show a linear function; y=1/2x+4
C. Yes, they show a linear function; y=2x+2
D. Yes, they show a linear function; y=2x

Answer 2

compare the first row to the second row. compare the entries

-2, -4
2, 4
4, 8

what rule is it that makes the second entry from the first?

Answer 3

You add 2,4?

Answer 4

if you add 2 to the first entry:

-2 + 2 = 0

Answer 5

also adding 2, 4 is not one rule

Answer 6

there's another dependency

Answer 7

add four?

Answer 8

-2+4 = 2

2 + 4 = 6

Answer 9

-2 .... -4
0 .... 0
2 .... 4
4 .... 8

what operation can you do to all of them and this same operation
holds true for every case

Answer 10

Addition

Answer 11

Nope

addition by a number can not increase by 2 in one case
and increase 4 in another

Answer 12

Idk division? DX

Answer 13

by what number?

Answer 14

2?

Answer 15

2 is right :)

Answer 16

if you input 2, you get 4

that means you....

Answer 17

x=input

y= output

Answer 18

yes, it is linear. the rule is x=y+4

Answer 19

But x=y+4 is not an answer

Answer 20

if you input 4, you get 8 (last pair of entries)

x=input, y=output

so what did you do to 4, to get 8 ?

Answer 21

oh, then x=y+2

Answer 22

I thought you had to go like 8/2

Answer 23

yeah, but x is the input
and y is the output

that means we manipulate x, which is 4
to get y=8

Answer 24

you can either 8/2, or you can 4 ???

Answer 25

8/2 = 4,
4 ??? = 8

Answer 26

4*2=8

Answer 27

Yes! :)

Answer 28

ok, 8 is the output, and
y = output

what's the input here?

Answer 29

:D yay c:

Answer 30

2 is the input?

Answer 31

we give the function a 4, and it returns 8:

f(4) = 8

Answer 32

in another case, we give the function a 0, and it returns 0:

0*2 = 0

Answer 33

the output is the result of the calculation. 8 or 0

Answer 34

ooooooohhhhhhhh :O

Answer 35

what does the function return for x=2 ?

Answer 36

( what is the y-value for x=2 ?)

Answer 37

6