Here is the Equation:

y<=4-x^2 <---- parabola (I graph it ok)

16x^2+25y^2<=400

for the circle:

becomes:

x^2/25+y^2/16=1

\(\displaystyle y=+/- \frac{4\sqrt{-1(x-5)(x+5)}}{5(X-5)(x+5)}\)

is that right? then when input it in my TI-83 it doesn't look right...

pls help me out thanks!