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Derive and Interpret Parabola Equations
Worksheet
Grade Level
Pre-Calculus
Pre-CAL.106 Derive and Interpret Parabola Equations
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A parabola has directrix x = -7 and focus (3, -4). Which statement is correct?
A
Vertex (-2, -4); equation (y + 4)
2
= 20(x + 2); latus rectum length 20
B
Vertex (-2, -4); equation (y + 4)
2
= -20(x + 2); latus rectum length 20
C
Vertex (3, -2); equation (x - 3)
2
= 20(y + 2); latus rectum length 20
D
Vertex (-7, -4); equation (y + 4)
2
= 20(x + 7); latus rectum length 10
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