View Full Version : Find the domain of the function? Help!

shortlikelife

11-08-2012, 01:04 AM

Find the Domain for:

g(x) = (x-3)/(2x+1)

Possible Answers:

A.(3, −1/2)

B.(-∞, −1/2] U [3,∞)

C.(−1/2, 1/2)

D.(-∞, −1/2) U (−1/2,∞)

How do i find the domain? Can you please explain???

wjm11

11-08-2012, 01:17 AM

Find the Domain for:

g(x) = (x-3)/(2x+1)

Possible Answers:

A.(3, −1/2)

B.(-∞, −1/2] U [3,∞)

C.(−1/2, 1/2)

D.(-∞, −1/2) U (−1/2,∞)

How do i find the domain? Can you please explain???

The domain is all the allowable numbers for x.

We are never allowed to divide by zero.

Any value of x that makes a denominator zero is not part of the domain.

Bob Brown MSEE

11-08-2012, 01:18 AM

What x values do you need to exclude?

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