Question

Which of these have a different pattern, and not the same pattern

-4,-1,2,5
1,4,9,16
2.5,5,7.5,10

Answer 1

how do you get from -4 to -1?

Answer 2

what's one way?

Answer 3

-

Answer 4

?

Answer 5

+3

Answer 6

good, now from -1 to 2?

Answer 7

+3?

Answer 8

excellent! and from 2 to 5?

Answer 9

+3?

Answer 10

I have to figure out which one of those have a different pattern one that is not the same like the one that isn't just +3 +3 +3,

Answer 11

yep, so the first one just add 3 at each step.
what about the next? from 1 to 4?

Answer 12

+3?

Answer 13

great. now from 4 to 9?

Answer 14

+5

Answer 15

right and from 9 to 16?

Answer 16

+7?

Answer 17

awesome! so we have 2 different patterns. the thrid should fit with one of those in some way.
how do we get from 2.5 to 5?

Answer 18

I'm sorry I am having trouble with this one

Answer 19

try adding 2.5, what do you get?

Answer 20

5!

Answer 21

and now from 5 to 7.5?

Answer 22

Sorry, dumb moment there

Answer 23

now worries, I have them constantly!

Answer 24

+2.5

Answer 25

no not now

Answer 26

Lol!

Answer 27

yes! and to get from 7.5 to 10?

Answer 28

+2.5!

Answer 29

you're on it!
so the first was +3 at each step and the thrid was +2.5 at each step and the second was +3 then +5 then +7.
which is different?

Answer 30

Could you help me with one more thing? Which of these represent the function of x that is equal to the number 3 subtracted from the sum of twice the value of x and 4?
f(x)=3-(2x+4)
F(X)=3+(2x-4)
f(x)=(2x+4)-3
f(x)=(2x-4)+3
I just need some help on how I would figure it out

Answer 31

what's being subtracted?

Answer 32

you still there?

Answer 33

Yes, I am sorry I stepped away for a minute

Answer 34

3?

Answer 35

so which choices have 3 being subtracted from something?

Answer 36

the first and 3rd one

Answer 37

nope, only the 3rd. in the first something is being subtracted from 3.

Answer 38

Oh I'm sorry I didn't even realize that

Answer 39

you should also notice that 3 is being subtracted from a sum (in the 3rd choice). The sum of 2 times x and 4. 2 times x is twice x.

Answer 40

So my answer would be the 3rd one?

Answer 41

what do you think?

Answer 42

I think it would be