I need help solving this one problem it keeps giving me trouble, please and thank you!

Question

If y=121 when x=11, find y when x=5

Answer 1

Just a wild guess, but if y=121 when x= 11, maybe the function is y=x^2

then if x=5, y=x^2 = 5^2 = 25

or maybe the function is linear, such as y=11x, then if x=5, y = 11(5)= 55

those are the most two likely simple relations, but you need more information to get a unique answer