Question

What is the domain of the function?
Y = sqrt 4x+8
A) x > - 2 (> is underlined)
B) x < - 2 (< is underlined)
C) x > 2 (> is underlined)
D) x < 2 (< is underlined)

Answer 1

@satellite73

Answer 2

Obviously (hopefully) a square root function cannot be negative.

Also, 4x-8 must be >= 0, otherwise the sqrt is undefined for the reals.

4x-8 >= 0

4x >= 8

x >= 2

Then the range is [0, inf)
The domain is [2, inf)

Answer 3

i can't tell u the answer but with what i just typed what do u think it is

Answer 4

@boldjon C

Answer 5

Ma man! u got it bro

Answer 6

@boldjon Thanks :)

Answer 7

np

Answer 8

underlined lol

Answer 9

you mean or equal