Choose the two examples that represent volume. A. the length of a path
B. the surface of a mirror
C. the amount of sand in a sand castle
D. the amount of water in a water balloon
E.
the amount of weight an elevator can hold

C. the amount of sand in a sand castle

D. the amount of water in a water balloon

Step-by-step explanation:

C and D

Step-by-step explanation:

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: