Pre-Calc/Chapter 8: Analytic Geometry in Two- and Three-Dimensions/8.1 Conic Sections and Parabolas/8.1.1 Find Vertex, Fous, Directrix, and Focal Width
Find the vertex, focus, directrix, and focal width of the parabola.- x2 = y
Find the vertex, focus, directrix, and focal width of the parabola.
- x2 = y]]>
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abc
Vertex: (0, 0); Focus: (0, -10); Directrix: y = 10; Focal width: 40
Correct
Vertex: (0, 0); Focus: (-20, 0); Directrix: x = 10; Focal width: 160
Incorrect
Vertex: (0, 0); Focus: (0, 10); Directrix: y = -10; Focal width: 10
Incorrect
Vertex: (0, 0); Focus: (0, -10); Directrix: y = 10; Focal width: 160
Incorrect