How do I find the domain and range for the equation: -1 + cube root(2-x) ?

And also, can anyone tell me where is the cube root button on the TI-89?

Question

How do I find the domain and range for the equation: -1 + cube root(2-x) ?

And also, can anyone tell me where is the cube root button on the TI-89?

anonymous · Answer

$$-1+ ^{3}\sqrt{2-x} $$

anonymous · Answer

Cube root has domain and range all reals.

Don't know about your calculator but mine has a couple functions next to each other reached by a shift key$$x^y  x^{\small\frac{1}{y}}$$

So the cube root would be the second one - number shift second one 3

anonymous · Answer

Ohh I see.  Thanks!
Yeah I have those functions on my scientific calculator but I can't find those on the TI-89..