SOLUTION: find the domain of f(x)=7+ sqrt (3x+21), and express it using interval notation.

Question 48060: find the domain of f(x)=7+ sqrt (3x+21), and express it using interval notation.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
f(x)=7+ sqrt (3x+21)
The 3x+21 must not be negative.
So, 3x+21>=0
3x>=-21
x>=-7
The domain is all Real Numbers greater than or equal to -7.
Cheers,
Stan H.
RELATED QUESTIONS
Find the domain f(x)=7+sqrt(3x+21) and express it using interval... (answered by Nate)

Find the domain of f (x) = 7 + 3x + 21 , and express it using interval... (answered by tutorcecilia)

Find the domain of f(x)=7+ sqrt 3x+21 and express it using interval notation. How do I... (answered by stanbon)

FIND THE DOMAIN FOR {{{f(x) = sqrt(3x+21)}}},
AND EXPRESS IT USING INTERVAL... (answered by Edwin McCravy)
Find the domain of f(x)= 7+ the square root of 3x+21, and express it using interval... (answered by jim_thompson5910)
Find the domain of f(x)=7+sqrt3x+21 and express it using interval... (answered by venugopalramana)
                                /-------
Find the domain of f (x) = 7 + /3x + 21 , and... (answered by Nate)
Find the domain of f(x)=7+(sqrt3x+21), and express it using interval notation.... (answered by Nate)
Someone Pleeze help explain this to me

Find the domain of f(x) = 7+(square root sign)... (answered by stanbon)