1. Timmy goes to the fair with S40. Each ride costs $2. How much money will he have left
after riding 16 rides?

Step-by-step explanation:

Timmy starts off at $40. Each ride costs $4 x the total rides. 2 x 16 = 32. Finally, you subtract 40 - 32= $8 dollars.

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: