X-Intercept, Y-Intercept on Ti-84? PLEASE HELP. PRETTY PLEASEEE. ?

Question

R(x) = 30√(20-x)-x^2

(Only 20-x is under the square root).

Okay. So, I have to find the X-INTERCEPT, Y-INTERCEPT, DOMAIN, and RANGE of this equation by using my TI-84 calculator.

I know that to find the X & Y intercept, I have to use the ZERO command...but, it's not working properly.

SOMEONE PLEASE HELP ME FIGURE THIS OUT.

PLEASE, THANKS.

Answer 1

For the intercepts, I think you need to specify the left/right boundaries