This graph displays a linear function. what is the rate of change?

Rate of change = 5

Step-by-step explanation:

If a line passes through two points and , then the rate of change of the line is

From the given graph it is clear that the line passes through the points (1,-1) and (2,4).

Using the above formula, the slope of the line is

Therefore, the rate of change of given line is 5.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you