Write Equations
Parabola with vertex at (0, 0) and directrix at x = -6
y^2=24x
x^2+y^2=81
Circle with center at (0, 0) and radius of 9
y=2x+16
y=-3x+6
(-2, 12)
A __ is the set of all points in a plane equidistant from a point.
circle
Circle with center at (0, 0) and passing through (-5, 2)
x^2+y^2=29
x^2=16y
Parabola with vertex (0, 0), focus (0, 4) and directrix y = -4
y^2=4x
2x-5y=-8
(16, 8) and (1, 2)
A ___ is the set of all points in a plane equidistant from a point called the focus and a line called a directrix.
parabola
Parabola with vertex at (-2, -1) and focus at (-2, 5)
(x+2)^2=24(y+1)
16x^2+25y^2=400
Ellipse (vertices, co-vertices, foci)
(+-5, 0), (0, +-4), (+-3, 0)
4x^2+y^2=16
x+y=2
(-6/5, 16/5) and (2, 0)
The line segment joining the two co-vertices of an ellipse is the ___.
minor axis
Ellipse with vertices at (-1, 4) and (7, 4) and foci at (1, 4) and (5, 4)
(x-3)^2/16+(y-4)^2/12=1
9x^2-y^2=9
Hyperbola (vertices, foci, asymptotes)
(+-1, 0), (+-sqrt10, 0), y=+-3x
x^2+4y^2-8y=4
y^2-2y-8x-16=0
(-2, 0) and (-2, 2)
The line segment joining the two vertices of a hyperbola is the ___.
transverse axis
Hyperbola with Vertex at (2, -5), focus at (-1, -5), and center at (5, -5)
(x-5)^2/9-(y+5)^2/27=1
y^2-10y-8x+1=0
Parabola, vertex (-3, 5), focus (0, 2) and directrix y = -2
(y-5)^2=8(x+3)
y^2-x^2+2x-5=0
x^2+y^2-2x-3=0
(1, -2) and (1, 2)
The day of the week is ___.
Wednesday