Task #2: Alecia has 4 times the amount of
money that her sister has. Together,
they have $40.00. How much money
does Alecia have? How much money
does Alecia's sister have?

32-Alecia and 8-sister

Step-by-step explanation:

4x+x=40

5x=40

x=8

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: