The table shows how the height of a stack of dvds depends on the number of dvds. what is a rule for the height?

number of dvds

height (cm)
2
18
3
27
4
36
n
?

a. h = 9n

b. h = 8n

c. h = 2n

d. h = n/9

Option 'A' is correct.

Step-by-step explanation:

Since we have given that

Number of  DVDs    Height

           2                        18

           3                        27

           4                        36

Since there is direct proportion between number of DVDs and height.

We need to find if the number of DVDs is n, then height would be

Hence, the rule for the height for n is h = 9n.

Option 'A' is correct.

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.

many reason,

step-by-step explanation: