Mr. porod's famouse peanut butter pie has 4 ingredients, peanut butter, cream cheese, powdered sugar and cool whip. the receipe call for 12ox of cool whip. unfortunately cool whip is only sold containers of 8oz or 16oz. how much of the containers need to be added? write and solve a proportion for both the 8oz container and 16oz containers.

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: