Question 1142371
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A: The restriction on {{{f(x) = 3x*sqrt(3+x)}}} is that 3+x has to be greater than or equal to zero.  Does A say that?<br>
B: The restriction on {{{g(x) = (x+3)/(3x+2)}}} is that the denominator can't be 0.  Does B say that?<br>
C: The restriction on{{{h(x) = sqrt(x-1)/sqrt(x+1)}}} is that x-1 must be greater than or equal to 0 and x+1 (since it is in the denominator) must be greater than 0.  Does C say that?<br>