Question

2, 4, 8, 16...
a. Add 2 to the previous term; 14, 12
b. Subtract 2 from the previous term; 32, 64
c. multiply the previous term by -2; -32, 64
d. Multiply the previous term by 2; 32, 64

-5, 5, -5, 5...
a. Subtract 10 from the previous term; -5, 5
b. Multiply the previous term by 1; 5, 5
c. Add 10 to the previous term; -5, -15
d. Multiply the previous term by -1; -5, 5

Answer 1

@mathstudent55

Answer 2

@Mertsj

Answer 3

What are you supposed to do?

Answer 4

I dont know, im confused . can you help @Mertsj

Answer 5

There must be some directions somewhere. What do they say?

Answer 6

It only says " Describe a pattern in each sequence. What are the next two terms of each sequence?"

Answer 7

Ok.

Answer 8

Look at the first one. The first term is 2. The second term is 4. What can you do to 2 to get 4?

Answer 9

add 2?

Answer 10

Ok. That is true. Let's try that. The second term is 4 and the third term is 8. If you add 2 to the 4, do you get 8?

Answer 11

no. you get 6

Answer 12

So adding 2 does not work. The first term is 2 and the second term is 4. What else can you do to 2 to get 4 besides add 2?

Answer 13

Multiply?

Answer 14

by what?

Answer 15

2 x 2

Answer 16

Ok. Let's try that.
The first term is 2. The second term is 4. The third term is 8. The fourth term is 16.
2x2=4
4x2=8
8x2=16
That seems to work. What are the next two terms?

Answer 17

32 and 64 ? @Mertsj

Answer 18

Yes. So what answer are you going to choose?

Answer 19

D, right? @Mertsj

Answer 20

Very good. Now try the second one.

Answer 21

How @Mertsj

Answer 22

The same way. The first term is -5. The second term is 5. What can you do to -5 to get 5?

Answer 23

add 10?

Answer 24

The third term is -5. If you add 10 to the second term do you get the third term?

Answer 25

yes

Answer 26

5+10 is NOT -5

Answer 27

oops. subtract

Answer 28

@Mertsj

Answer 29

The first term is -5. The second term is 5.
If you subtract 10 from -5 you DO NOT get 5

Answer 30

I am bad at math :/ @Mertsj

Answer 31

The first term is -5. The second term is 5. There are two things I can do.
-5+15=5 But the third term is -5. If I add 10 to the second term I do not get the third term so adding 10 will not work.
Look at the answer choices and find one that works.

Answer 32

So its multiply?

Answer 33

yes

Answer 34

B?

Answer 35

@Mertsj

Answer 36

You do know, I assume, that if you multiply a number by 1 the answer is the same number you started with?

Answer 37

Oh, thats right. Its d. Thank you so much. I like how you are the only person that actually showed me how to do it, unlike some people that just give out answers @Mertsj

Answer 38

yw