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?

Answer 1

\[-1+ ^{3}\sqrt{2-x} \]

Answer 2

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

Answer 3

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