Tuesday

September 23, 2014

September 23, 2014

Posted by **Sharday** on Wednesday, May 22, 2013 at 8:18pm.

g(x)=7x/x^2-4

2.Find the domain of the function. Make sure answer is in interval notation.

f(x)=5x square root of x-2

- algebra -
**Henry**, Friday, May 24, 2013 at 8:42pm1. g(x) = 7x/(x^2-4)

x^2-4 = 0

x^2 = 4

X = +- 2.

Domain: -2 <X< 2.

2. F(x) = 5x*sqrt(x-2).

2 <=X< +Infinity.

- algebra -
**Henry**, Saturday, May 25, 2013 at 7:22pmCorrection:

1. 7x/(x^2-4) = 7x/(x+2)(x-2).

When X = +-2, the denominator = 0. Therefore, +-2 are not in the domain.

Domain: All real values of X except +-2.

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