Trying to figure out how to find all numbers for which the rational expression is defined.

Question

9/2z+5

Is the answer 0?

Answer 1

Trying to figure out how to find all numbers for which the rational expression is undefined.

9/2z+5

Is the answer 0?

I made a mistake in my typing when I asked the question earlier.

Answer 2

Generally, the rational expression will be undefined when the denominator is 0. Find all values for z which would result in the denominator being 0.