Posted by Kim on Friday, June 19, 2009 at 3:19pm.
f(x)=root sign, and inside that x2 and g(x)x7. Which of the following is the domain of the quotient function?
A. (infinity,2]
B. (infinity,7) U (7,infinity)
C. [2,7) U (7,infinity)
D. (2, infinity)

Math  Damon, Friday, June 19, 2009 at 6:21pm
sqrt(x2) /( x7) ???
x must be 2 or greater or we have the square root of a negative number, which is not real.
x may not be 7 or we have a zero in the denominator
therefore
2 to 7 and 7 to + infinity
C

Math  Kim, Friday, June 19, 2009 at 10:42pm
Is C the quotient function of f/g?

Math  Damon, Saturday, June 20, 2009 at 5:25am
yes
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