Question

evaluate the function at the given values of the variable.
f(x)=the sq root of x-1
x=5,0

Answer 1

\[\sqrt{5-1}\]
= \[\sqrt{4}\]
= 2
----

\[\sqrt{0-1}\]
= \[\sqrt{-1}\]
= i

Answer 2

what happened to x=5,0 ??

Answer 3

Looks like you're evaluating two different values of x, so for the first you sub. 5 for x and the second you sub 0.