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15 Cards in this Set
- Front
- Back
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Center of a circle |
(h, k) |
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Standard form of a parabola |
(x-h)^2 = 4p(y - k)
or
(y-k)^2 = 4p(x-h) |
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Vertex of a parabola |
(h,k) |
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Standard form of a circle |
(x - h)^2 + (y - k)^2 = r^2 |
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Ellipse a, b, c |
a^2 = b^2 + c^2 |
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Hyperbola a, b, c |
c^2 = a^2 + b^2 |
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In a parabola, the directrix and the focal points are _____ distance from the _____ |
are "P" distance from the vertex |
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For an ellipse, the ______ stays the same while the _____ changes based on if the major axis is horizontal or vertical. |
numerator stays the same and the denominator changes.
If MA = horizontal, (x/a) and (y/b) If MA = vertical, (x/b) and (y/a) |
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For a hyperbola, the ______ stays the same while the _____ changes based on if the transverse axis is horizontal or vertical. |
The denominator stays the same and the numerator changes.
If TA = horizontal, (x/a) and (y/b) If TA = vertical, (y/a) and (x/b) |
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Stand form of a conic |
Ax^2 + Cy^2 + Dx + Ey + F = 0 |
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Conic: Circle |
A = C |
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Conic: Parabola |
AC = 0
Either A or C = 0, NOT both |
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Conic: Ellipse |
AC > 0
BOTH A and C are + OR - |
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Conic: Hyperbola |
AC < 0
Opposite signs! One is - and one is + |
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An ellipse has TWO _____ |
focal points |
