Question

A?

Answer 1

it can't be A because the graph does not go from -infinity to + infinity in either the x or y direction (the graph clearly cuts off somewhere)

think about the part that is inside the radical expression

(x+k)^(1/n)

if x + k has to be 0 or greater what does that tell you about the domain?

Answer 2

either c or d

Answer 3

x + k > 0

solving for x gives us

x > -k

which domain matches this description?

Answer 4

C

Answer 5

good