Plant Heights Height
Student
(inches)
Jerry
4
7
George
Elaine
3 1 / 2
Cosmo
3
3
These heights will be ordered from least to greatest. Which list of students matches this order?
А
Jerry, Elaine, Cosmo, George
B
Jerry, Elaine, George, Cosmo
С
Cosmo, George Elaine, Jerry
D
Elaine, Jerry, Cosmo, George
The

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:

step-by-step explanation: