The exponential function g, whose graph is given below, can be written as g(x)=a•b^x

g(x) =

Step-by-step explanation:

Let the equation of the graphed exponential function is,

g(x) =

Two points (0, 8) and (1, 2) lie on this graph.

For (0, 8),

g(0) =

8 = a(1)

a = 8

For other point (1, 2),

g(1) =

2 = ab

2 = 8b

b =

b =

Therefore, given exponential function wiil be,

g(x) =

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

the answer is b.

step-by-step explanation: