Need Some help, I will mark brainliest :))

The first one

Step-by-step explanation:

the first one is biased because it is not random but rather people who are using the library. They will obviously be biased towards the library

(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.