No problem. With the growth of functions, you have BIG O, BIG OMEGA, and BIG THETA. You are working with BIG THETA which combines BIG O and BIG OMEGA. (Look these up in either your text or Google them)

The idea for BIG THETA is that you can find a function that will create an envelope around

. So looking at the graph, 1 *

is always below

which is always below 2 *

for n greater than or equal to 2.

C1 = 1 goes in the first blank, C2 = 2 goes in the second blank, and k=2 goes in the last blank.

Good luck!