Question

Really simple question, I'm just confused.

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Number of days (x)

2

7

0

4

8

3

6

1

5

Number of photographs uploaded to a social networking site (y)

12

37

2

22

42

17

32

7

27



What does the y-intercept of the model represent?
A: The total number of photographs uploaded daily
B: The original number of photographs uploaded to the site
C: The increase in the number of photographs uploaded to the site each day
D: The decrease in the number of photographs uploaded to the site each day

Answer 1

hmm what's the y-intercept anyway?

Answer 2

i'm assuming I should graph it to find the y-intercept but not sure?

Answer 3

\(\large \begin{array}{ccllll}
\textit{Number of days (x)}&\textit{photographs uploaded to site (y)}
\\\hline\\

2 & 12\\

7& 37\\

0& 2\\

4& 22\\

8& 42\\

3& 17\\

6& 32\\

1& 7\\

5& 27\\
\end{array}\)

see the y-intercept there by any chance?

do you know what's a y-intercept?

notice -> "intercept", meaning, "touches"
or when the graph "touches" the y-axis

Answer 4

I tried graphing it two different ways - I'm aware of what an y-intercept is, this question is just giving me a hard time for no particular reason.

I graphed it with an online source and THINK I found a y-intercept of 5.

Answer 5

well... notice the graph above
it has a y-intercept, the graph is "touching" or "intercepting" the y-axis

what's "x" at that point anyway?

Answer 6

when the y-intercept is 5? the x looks to be 22-ish? The plot isn't exact, so I'm guessing it'd be 27? because the x is 27 when the y is 5 in the question.

Answer 7

i have to go in a minute, fyi.

Answer 8

well... notice the graph above
it has a y-intercept, the graph is "touching" or "intercepting" the y-axis

what's "x" at that point anyway? any ideas? can you see what "x" is on the graph?

Answer 9

...on my graph, the x appears to be around the 22 marker when the y = 5

but I'm guessing it'd actually be 27, because that's the x when y = 5 in the question.

Answer 10

okay, wait. I'm confusing MYSELF here.

Answer 11

hehe

Answer 12

http://www.mathsisfun.com/definitions/y-intercept.html

Answer 13

The y intercept is all of the side with the total photographs uploaded to a social networking site, which is y. Now which answer says what I just said.

Answer 14

A?

Sorry - went to the store.

Answer 15

the answer is b because the y intercept is the beginning of the web sits log

Answer 16

Yea the answer is B

Answer 17

Thanks, both of you.