domain algebraically

Question 1

square root in bottom

Answer 1

set expression to more than 0 (>)

Question 2

square root on top

Answer 2

set top to great than 0 and the bottom to not equal to 0

Question 3

fraction only

Answer 3

set bottom not equal to zero

Question 4

square root only

Answer 4

set expression under to more than or equal to 0