x - MathnMind

Co-vertices
The co-vertices for
x2
}
9
y2
1 } 5 1 are (0, 62).
4
Hyperbola
y2
}
16
2
y
2
x2
2 } 5 1
9
Conic sections
1
y
1
The circle x 2 1 y 2 5 1
is a conic section.
Discriminant
The discriminant of
3x 2 1 y 2 1 2x 2 3y
1 15 5 0 is
B 2 2 4AC 5 0 2 2 4(3)(1)
5 212.
Eccentricity
x
x
The eccentricity of an ellipse with equation
(x23)2
}
49 1
(y22)2
}
9
5 1 is e 5 c
}
a =
Minor axis
The minor axis for
x2
}
5 1 is vertical
9 4
(x 5 0).
1 y2
}
Transverse axis
The transverse axis for
y2
}
5 1 is vertical
16 9
(x 5 0).
2 x2
}
General second-degree
equation
3x 2 1 y 2 1 2x 2 3y
1 152 0
Quadratic system
x2 1 y2 5 5
y 5 2x
2 Ï} 10
} ≈ 0.904.
7
Review your notes and Chapter 9 by using the
Chapter Review on pages 666–669 of your textbook.
260 Words to Review Algebra 2 Notetaking Guide Copyright © Holt McDougal. All rights reserved.