IDNLearn.com: Your one-stop destination for finding reliable answers. Our community is ready to provide in-depth answers and practical solutions to any questions you may have.
Answer:
the red line: [tex]y\ =\ \sqrt{900-x^{2}}[/tex]
the black line: [tex]y=\frac{1}{27.5}x^{2}+15[/tex]
Below the graph.