Serenas mom is planning her bday party. she bought ballons. plates and cups . serenas mom bought twice as many plates as cups. the number of balloons serenas mom bought was half the number of cups. if half the plates and all but four cups were used during the party. how many plates and cups were used

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:

idk

step-by-step explanation: i just don't