Abbey's class is made up of 21 students--11 girls and 10 boys. What is the ratio of girls to boys? A. 10 : 11
B. 11 : 10
C. 11 : 21
D. 21 : 11

B is the number one answer

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:

x+14

step-by-step explanation: