A road toll is 3¢ for 5 kilometers. How much for 125 kilometers?

i think it would be 75 cents

Step-by-step explanation:

125 divided by 5 and you get 25, then you fo 25 times 3

75 cents

Step-by-step explanation:

x= 5 kilometers

y= 3 cents

y/x= rate of change

3/5= 0.6

125 kilometers is the x variable so y= 0.6(125)

y= 75

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:

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation: