The students are selling cookies at a school fair.
sara is selling 3 chocolate chip cookies for $2.49 .

a)if you wanted to buy one cookie from sara how much would it cost ?

b) how much would it cost to buy20 of sara's cookies ?
show your work and explain you reasoning .

(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.