The first and third term of a gp are 5 and 80 what is the fourth term

Let r be the common ratio, then the first four terms are

Fourth term

320

b.-4 units

all you   do is count how many times you move

(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.