Chapter 10 study guide 1) A circle has a diameter with endpoints (4,2) and (-2,4). Find the coordinates of the center, length of the radius, and area. Find the center, vertices, co-vertices, foci, and asymptotes for each hyperbola and graph: 9) x2 9 y2 16 1 2) Write the equation of a circle with center (-1,2) and radius 4. Graph the circle. 10) 3) Write an equation of the line tangent to the 2 2 circle x 6 y 1 25 at the point (2, 4) Find an equation of the hyperbola described: y 2 1 2 x 1 4 2 1 11) Center 0,0 , Vertex 4) Write the equation of the circle with center (-5, -2) and containing the point (19, -9) 5) Write an equation in standard form for each ellipse with center (0.0) a) Vertex (6,0) and co-vertex (0,-5) 7,0 , Co-vertex 0,5 12) Center 0,0 , focus 5, 0 , asymptotes y 13) Foci 3, 2 and 3 x 4 3,8 , vertex ( 3,7) b) Co-vertex (-24, 0) and focus (0, -18) Find the vertex, axis of symmetry, focus, and directrix of each parabola and then graph: c) Co-vertex (0, -24) and focus (10, 0) 14) 4 x 6) Graph each ellipse. a) ( x 4) 2 25 15) x 2 ( y 1) 2 64 1 y2 4 y 8 y 4x 4 0 Find the equation of the parabola described: 16) Focus (0, 0) , directrix y b) ( x 2) 49 2 ( y 3) 16 4 2 1 17) Vertex 0,0 , directrix x 1 0 7) Find the constant sum of an ellipse with foci F1 2,3 and F2 5, 1 and the point on the 18) Focus 3, 4 Vertex 3, 2 ellipse 2,3 . Identify the conic by completing the square and graph – label all appropriate parts: 8) Engineers have designed a tunnel with the x2 y 2 1 , measured in feet. A design equation 81 64 for a larger tunnel needs to be twice as wide and 3 times as tall. Find the dimensions for the larger tunnel and write an equation for the design of the larger tunnel. 19) x 2 y 2 12 x 4 y 32 0 20) 4 x 2 25 y 2 24 x 50 y 89 0 21) 3x 2 4 y 2 18 x 8 y 19 0
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