Vertical asymptotes at x = 3 and x = 2,

x-intercepts at (6,0) and (-5,0),

Horizontal asymptote at (0,7).

Change=-$0.14.

It means price decreased by $0.14.

Step-by-step explanation:

Let as assume

c be the total change in the price of gas.

d  be the number of days the prices has decreased.

p be the change in price each day.

Total change in the price =  Number of days × Change in price each day

             .... (1)

For the given problem,

Number of days , d = 7

Change in price each day, p = -$0.02

Negative sign represents the decrease in price.

Substitute d=7 and p=-0.02 in equation (1).

Therefore, the gas price decreased by $0.14 and change in price is -$0.14.