A vehicle's fuel economy is affected by its speed. The data on Spaller Auto's most popular vehicle is shown in the table below where x is the speed (mph) and F(x) is the fuel economy (mpg). Calculate the rate of change for the interval 45 ≤ x ≤ 55.

Question

Vocaloid · Answer

Having the table would make this easier but the rate of change formula should be

( f(55) - f(45) )/ (55-45)

Where f(55) and f(45) are found from the table