SOLUTION: I need to figure out how to do these and don't understand what steps need to be done. find the domain of the function f(x)= √23-x

Question 782841: I need to figure out how to do these and don't understand what steps need to be done.
find the domain of the function
f(x)= √23-x
Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!
Consider two issues for domain:

1. The denominator isn't 0

2. What's under an even root (usually 2...i.e. square root) isn't negative.

If this is then 23-x >= 0 so -x >= -23 so x <= 23.

The domain is all real numbers such that x<=23.

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SOLUTION: I need to figure out how to do these and don't understand what steps need to be done. find the domain of the function f(x)= &#8730;23-x