Chapter 6: Problem 51
Use a graphing utility to graph the curve represented by the parametric equations. Prolate cycloid: \(x=\theta-\frac{3}{2} \sin \theta, y=1-\frac{3}{2} \cos \theta\)
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Chapter 6: Problem 51
Use a graphing utility to graph the curve represented by the parametric equations. Prolate cycloid: \(x=\theta-\frac{3}{2} \sin \theta, y=1-\frac{3}{2} \cos \theta\)
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Find the vertex, focus, and directrix of the parabola. Use a graphing utility to graph the parabola. \(x^{2}-2 x+8 y+9=0\)
Identify the conic as a circle or an ellipse. Then find the center, radius, vertices, foci, and eccentricity of the conic (if applicable), and sketch its graph. \(\frac{x^{2}}{5}+\frac{y^{2}}{9}=1\)
Find an equation of the ellipse with vertices (±5,0) and eccentricity \(e=\frac{3}{5}\).
Find the vertex, focus, and directrix of the parabola, and sketch its graph. \(y=\frac{1}{4}\left(x^{2}-2 x+5\right)\)
The first artificial satellite to orbit Earth was Sputnik I (launched by the former Soviet Union in 1957 ). Its highest point above Earth's surface was 947 kilometers, and its lowest point was 228 kilometers (see figure). The center of Earth was at one focus of the elliptical orbit, and the radius of Earth is 6378 kilometers. Find the eccentricity of the orbit.
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