Answer each question showing work where work can be shown.
14. What is the standard equation of the
15. What are the center and radius of the circle whose equation is x2 + (y-3)2 = 144?
16. What are the vertices of the ellipse whose equation is (x2)/9 + (y2)/4 = 1?
17. What is the center of the hyperbola whose equation is [(x+3)2 / 9] - [(y-3)2 / 16] = 1?
18. How does the graph of the hyperbola open, if its equation is [(x2) / 25] - [(y2) / 36] = 1? Explain how you know just by looking at the equation.
19. How does the graph of the hyperbola open, if its equation is [(y2) / 36] - [(x2) / 25] = 1? Explain how you know just by looking at the equation.
20. What is the eccentricity of the ellipse whose equation is [(x2) / 25] +[(y-3)2 / 9] = 1?
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