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VMariaS [17]
3 years ago
14

Ashley started the year with 45 comic books. Each month , she adds 5 more comic books to her collection. Which table correctly r

epresents y , the number of comic books in her collection, after x months

Mathematics
2 answers:
katen-ka-za [31]3 years ago
8 0
The rule for this situation would be y = 45 + 5x
the only table that gives you the correct output of y when you plug x into the equation is the second table


hope this helped!
dybincka [34]3 years ago
7 0
Ashley starts with 45 comics. 

So in the first box: 
x  = 0, y = 45
-------------------------------------------------------------------------------------------------------
Each month, she adds 5 comic books to her collection

x (+1), y (+5) (for each month).

First month. 

x = 0
y = 45

Second month

x = 1
y = 45 (+5) = 50

Third month

x = 2
y = 50 (+5) = 55

etc.

-------------------------------------------------------------------------------------------------------

B) is your best choice, as for every month add (+1), the comic books increase by 5 respectively.

-------------------------------------------------------------------------------------------------------

hope this helps

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Answer:

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See attachment for graph

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So, we have:

\bar x = \frac{50 * 1 + 57 * 2 + 60 * 4 + 65 * 3 +72 *3 + 75 * 12 + 77 * 10 + 81 * 6 + 83 * 6 + 88 * 9 + 90 * 12 + 92 * 12 +95 * 2 + 99 * 4 + 100 * 5}{1 + 2 + 4 + 3 +3 + 12 + 10 + 6 + 6 + 9 + 12 + 12 +2 + 4 + 5}

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Next, calculate the variance using the following formula:

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