Question

given the function f(x)=3√x-2; What restriction is there on the value uner the square root symbol? In other words what can't you do with a square root expression?

Answer 1

square roots dont like negative values to well; gives them indigestion

Answer 2

what does that mean?

Answer 3

it means that you dont want the value under the radical to drop into the negatives; keep it at zero or above.

Answer 4

alright so the restriction that is on the square root expression is that it cant be negative?

Answer 5

as long as we are assuming "real" numbers, that is correct.

Answer 6

thanks!

Answer 7

in other words x>=2

Answer 8

.