In Problems 69–76, (a) find the intercepts of each equation, (b) test each equation for symmetry with respect to the x-axis, the y-axis, and the origin, and (c) graph each equation by hand by plotting points. Be sure to label the intercepts on the graph and use any symmetry to assist in drawing the graph. Verify your results using a graphing utility. 69. y = x² – 5 73. x² + y? = 9 71. x – y? = -9 75. y = x' - 4x 72. x + y? = 4 76. y = x - x 70. y = x2 - 8 74. x² + y? = 16
In Problems 69–76, (a) find the intercepts of each equation, (b) test each equation for symmetry with respect to the x-axis, the y-axis, and the origin, and (c) graph each equation by hand by plotting points. Be sure to label the intercepts on the graph and use any symmetry to assist in drawing the graph. Verify your results using a graphing utility. 69. y = x² – 5 73. x² + y? = 9 71. x – y? = -9 75. y = x' - 4x 72. x + y? = 4 76. y = x - x 70. y = x2 - 8 74. x² + y? = 16
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.3: Hyperbolas
Problem 41E
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