Aperson leaves their house to go to the store. it takes 15 minutes at 12 mph to get to the store. they return home at 31 mph. what is the average rate of the speed for the entire trip?

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.