Question

(I'll fan and give you a medal! )

4. Suppose soda is on sale for $0.50 a can, and have a coupon for $0.80 off your total purchase. Write a function rule for the cost of n cans of soda.
A. C(n)=0.80n-0.50
B. C(n)= 0.50n-0.80
c. C(n)= (0.50+n)-0.80
d. C(n)=(0.80+n) -0.50

Answer 1

@AnswerMyQuestions

Answer 2

@bohotness

Answer 3

@Colere252346

Answer 4

Do you have any ideas about this?

Answer 5

here

Answer 6

you're going to add love

Answer 7

someone please I'm desperate

Answer 8

yea

Answer 9

@Mimi_Styles You have $0.80 off of your purchase, so what will you be subtracting?

Answer 10

@k_lynn

Answer 11

*cries*

Answer 12

@AnswerMyQuestions < < < < < !! ! !! ! ! D:

Answer 13

i am having a liitle lag

Answer 14

If you think about it, total cost would be $0.50 for every can then minus $0.80 because of the coupon. Let every can be 'x'.

Answer 15

i think you asnwer might me b or c

Answer 16

...

Answer 17

wait huh?

Answer 18

I should have said let every can be 'n', instead. The function is C(n) = 0.50*n - 0.80

Answer 19

so it would be C? :o

Answer 20

where did you go? please come back! I really need to get this done so I can work on my other work :(

Answer 21

today is the last day! @aleroth

Answer 22

To try out which one makes sense you could try plugging in numbers for n.

Let's try buying 2 cans. The price would be:
0.5 dollars/can * 2 cans - 0.80 dollar coupon = 1 - 0.8 = 0.2 dollars

Let's try answer C:
C(n)= (0.50+n)-0.80
C(2) = (0.50+2)-0.80 = 2.5-0.8 = 1.7 dollars <-- this is not the same as above, you see?

Let's try answer B:
C(n)= (0.50*n)-0.80
C(2)= (0.50*2)-0.80 = 1-0.8 = 0.2 dollars <-- This is it!

Answer 23

I see.

Answer 24

@AnswerMyQuestions

Answer 25

please @AnswerMyQuestions I really need to get this done :(

Answer 26

A function is a relation in where every input has only one output. So if there are the same outputs, then it is not a function.

Answer 27

(The outputs here are what the numbers are pointing to)

Answer 28

how do I figure out which ones are the same outputs?

Answer 29

Numbers can't be pointing to the same number, or it is not a function, so what is your answer?

Answer 30

B?

Answer 31

Correct.

Answer 32

yay! can you please please pretty please help me with more? I'm stressing over here and I only have until 11:59pm to get this all done!

Answer 33

@AnswerMyQuestions

Answer 34

It's 12:12 here :P

Answer 35

AH!

Answer 36

it's 12:13pm here

Answer 37

do you see my next question D:

Answer 38

Yeah.

Answer 39

I don't get it..

Answer 40

"An arithmetic sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference."

Answer 41

what about that one ^ @AnswerMyQuestions

Answer 42

@Directrix Can you help? I'm a little busy right now.

Answer 43

*stresses*

Answer 44

Exercise 6 is an arithmetic sequence with the common difference 6. Which means subtracting two following numbers will result in 6.

Answer 45

*cries*

Answer 46

I knew it!

Answer 47

I really need help on 8 tho D:

Answer 48

@Directrix HELLOOO D: come back :(

Answer 49

someone come back :(

Answer 50

@Mimi_Styles Ask 1 question per post.

Answer 51

oki.

Answer 52

Open a new post to ask questions.