Posted by **jess** on Monday, July 12, 2010 at 9:16pm.

If g(x)>0 for all real values of x, which of the following could be function g?

a) g(x)= x+1

b) g(x)=x-1

c) g(x)= x^2+1

d) g(x) = x^2-1

e) g(x) = x^3 + 1

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