Andrew is going to drive from his house to city a without stopping. andrew's house
is 160 miles from city a and after driving for 3 hours, he will be 40 miles away from
city a. write an equation for the function d(t), representing andrew's distance
from city a t hours after leaving his house

D=160-13 1/3t

Step-by-step explanation:

D is distance in this instance

We are using y=mx+b for this.

The initial distance is 160 miles, that's our y-intercept or b.

Now we need to find our slope. If Andrew is 40 miles away in 3 hours, he is 13 and 1/3 miles away in 1 hour. It's negative because you are subtracting from the initial distance. You can keep that as an improper fraction if that makes it easier for you.

Now plug it in

Distance=13 1/3 miles times how many hours subtracted from 160 or D=-13 1/3+160. This can be rearranged to the answer above.

a: 1/6, j: 1/4

step-by-step explanation: you are welcome