Two circles are always, never, or sometimes congruent if their radii are the equal.

always

Step-by-step explanation:

Congruent in mathematics means equal in size and shape. So, if two circles have the same radii, they are congruent, because they have the same shape (circular) and size (equal radii). The positions of them it doesn't matter, for example, they can overlap

step-by-step explanation:

i hate black

(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.