Question

Data collected about vehicle age and fuel efficiency were used to calculate the model ŷ = 38.53(0.994)x, where x represents the age of the vehicle in years and ŷ represents the predicted fuel efficiency in miles per gallon. Predict the fuel efficiency for a car that is 7 years old.

9.94 miles per gallon
12.086 miles per gallon
36.941 miles per gallon
38.53 miles per gallon

Answer 1

Let's see

Answer 2

Working on it now

Answer 3

Y=38.53(0.994)^x
Basically, the model predicts that each year, the fuel efficiency decreases each year because the vehicle is becoming less efficient as it ages
You want to predict the fuel efficiency for a car that is 7 years old. So, we substitute x with 7

Answer 4

Which we get 36.94057913

Answer 5

So It would be C

Answer 6

Thanks lets get these last four finished as quick as possible ::>