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Questions and Answers
What is the formula for a vertical parabola?
What is the formula for a vertical parabola?
- y=a(x-h)^2 + k (correct)
- x = a(y-k)^2 + h
- y = k - p
- (x-h)^2/b^2+(y-k)^2/a^2=1
What is the formula for a horizontal parabola?
What is the formula for a horizontal parabola?
- y=a(x-h)^2 + k
- (x-h)^2/b^2+(y-k)^2/a^2=1
- y = k - p
- x = a(y-k)^2 + h (correct)
What is the vertex of a parabola?
What is the vertex of a parabola?
(h,k)
What is the focus for a vertical parabola?
What is the focus for a vertical parabola?
What is the focus for a horizontal parabola?
What is the focus for a horizontal parabola?
What is the directrix for a vertical parabola?
What is the directrix for a vertical parabola?
What is the directrix for a horizontal parabola?
What is the directrix for a horizontal parabola?
What is the axis of symmetry for a vertical parabola?
What is the axis of symmetry for a vertical parabola?
What is the axis of symmetry for a horizontal parabola?
What is the axis of symmetry for a horizontal parabola?
What is the value of a?
What is the value of a?
What is the value of p?
What is the value of p?
What is the formula for a vertical ellipse?
What is the formula for a vertical ellipse?
What is the formula for a horizontal ellipse?
What is the formula for a horizontal ellipse?
What is the center of an ellipse?
What is the center of an ellipse?
What are the foci of a vertical ellipse?
What are the foci of a vertical ellipse?
What are the foci of a horizontal ellipse?
What are the foci of a horizontal ellipse?
What are the vertices of a vertical ellipse?
What are the vertices of a vertical ellipse?
What are the vertices of a horizontal ellipse?
What are the vertices of a horizontal ellipse?
What is the length of the major axis?
What is the length of the major axis?
What is the length of the minor axis?
What is the length of the minor axis?
How to find c for an ellipse?
How to find c for an ellipse?
What is the formula for a horizontal hyperbola?
What is the formula for a horizontal hyperbola?
What is the formula for a vertical hyperbola?
What is the formula for a vertical hyperbola?
What are the foci of a vertical hyperbola?
What are the foci of a vertical hyperbola?
What are the foci of a horizontal hyperbola?
What are the foci of a horizontal hyperbola?
What are the asymptotes of a horizontal hyperbola?
What are the asymptotes of a horizontal hyperbola?
What are the asymptotes of a vertical hyperbola?
What are the asymptotes of a vertical hyperbola?
How to find c for a hyperbola?
How to find c for a hyperbola?
What is the equation of a circle?
What is the equation of a circle?
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Study Notes
Parabolas
- Vertical Parabola Formula: ( y = a(x - h)^2 + k )
- Horizontal Parabola Formula: ( x = a(y - k)^2 + h )
- Vertex of a Parabola: Given by the point ( (h, k) )
- Focus for Vertical Parabola: Located at ( (h, k + p) )
- Focus for Horizontal Parabola: Found at ( (h + p, k) )
- Directrix for Vertical Parabola: Defined by the line ( y = k - p )
- Directrix for Horizontal Parabola: Given by the line ( x = h - p )
- Axis of Symmetry for Vertical Parabola: The line ( x = h )
- Axis of Symmetry for Horizontal Parabola: The line ( y = k )
- Relation between ( a ) and ( p ): ( a = \frac{1}{4p} )
- Finding ( p ): ( p = \frac{1}{4a} )
Ellipses
- Vertical Ellipse Formula: ( \frac{(x - h)^2}{b^2} + \frac{(y - k)^2}{a^2} = 1 )
- Horizontal Ellipse Formula: ( \frac{(x - h)^2}{a^2} + \frac{(y - k)^2}{b^2} = 1 )
- Center of an Ellipse: Identified at the point ( (h, k) )
- Foci of a Vertical Ellipse: Located at ( (h, k + c), (h, k - c) )
- Foci of a Horizontal Ellipse: Positioned at ( (h + c, k), (h - c, k) )
- Vertices of a Vertical Ellipse: Found at ( (h, k \pm a) )
- Vertices of a Horizontal Ellipse: Located at ( (h \pm a, k) )
- Length of Major Axis: Calculated as ( 2a )
- Length of Minor Axis: Calculated as ( 2b )
- Finding ( c ) for Ellipse: Use the equation ( c^2 = a^2 - b^2 )
Hyperbolas
- Horizontal Hyperbola Formula: ( \frac{(x - h)^2}{a^2} - \frac{(y - k)^2}{b^2} = 1 )
- Vertical Hyperbola Formula: ( \frac{(y - k)^2}{a^2} - \frac{(x - h)^2}{b^2} = 1 )
- Foci of a Vertical Hyperbola: Positioned at ( (h, k + c), (h, k - c) )
- Foci of a Horizontal Hyperbola: Located at ( (h + c, k), (h - c, k) )
- Asymptotes of Horizontal Hyperbola: Given by the equations ( y = k \pm \frac{b}{a}(x - h) )
- Asymptotes of Vertical Hyperbola: Given by the equations ( y = k \pm \frac{a}{b}(x - h) )
- Finding ( c ) for Hyperbola: Calculated using ( c^2 = a^2 + b^2 )
Circle
- Equation of a Circle: Given by ( (x - h)^2 + (y - k)^2 = r^2 ) where ( (h, k) ) is the center and ( r ) is the radius.
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