Question

What is the domain of the following function?

f(x) = √ x - 8

Answer 1

to know the domain of a square root
you need to set x-8>=0
since square root can have negative values

Answer 2

solve for x

Answer 3

square root is not defined for values less than 0. so x-8 should be greater than or equal to 0..so the range is [8,infinity)

Answer 4

@amriju, do not give answer pls. he has to get the answer!

Answer 5

oh ok sorry...@xapproachesinfinity

Answer 6

No need to be sorry xD!!

Answer 7

thanks, got it.