Calculator Inactive
Determine whether each of the following is a circle, ellipse, parabola, or hyperbola. For circles, give the coordinates of the center and the radius. For ellipses, give the orientation, the coordinates of the center, vertices, foci and endpoints of the minor axis, the lengths of the major and minor axes. For parabolas, give the orientation, the coordinates of the vertex and focus, and the equation for the directrix. For hyperbolas, give the orientation, the coordinates of the center, vertices, foci and endpoints of the transverse axis, the equations of the asymptotes.
Circle with center \((3, 2)\) and radius 5.
Parabola opening up with vertex \((0, 1),\) focus \((0, 4),\) and directrix \(y = -2\)
Parabola opening left with vertex \((4, 1),\) focus \( \displaystyle \left(\frac{15}{4}, 1\right),\) directrix \( \displaystyle x = \frac{17}{4}.\)
Vertical ellipse with vertices \((0, \pm 5),\) center \((0, 0),\) endpoints of minor axis \(( \pm 2, 0),\) foci \((0, \pm \sqrt{21}),\) major axis 10 and minor axis 4.
Horizontal ellipse with vertices \((3, 3),\) and \((7, 3),\) center \((5, 3),\) endpoints of minor axis \((5, 2)\) and \((5, 4).\) Major axis = 4, minor axis = 2. Foci at \( (5 \pm \sqrt{3}, 3).\)
Horizontal hyperbola with center \((0, 0),\) vertices \((\pm3, 0),\) asymptotes \( \displaystyle y = \pm \frac{2}{3}x,\) foci: \( ( \pm \sqrt{13}, 0).\)
Circle with radius 3 and center \((2, 3)\)
Horizontal ellipse with major axis 10, minor axis 2, center at \((3, 2),\) vertices at \((8, 2)\) and \((-2, 2),\) endpoints of minor axis at \((3, 3)\) and \((3, 1),\) and foci at \( (3 \pm 2 \sqrt{6}, 2).\)
Parabola opening up with vertex at \((1, 3).\) Focus \( \displaystyle \left(1, \frac{25}{8} \right).\) Directrix \( \displaystyle y = \frac{23}{8.}\)
Circle with center at \( \displaystyle \left(1, -\frac{1}{2} \right)\) and radius \(\sqrt{2}.\)
Horizontal hyperbola with center at \((1, 2),\) vertices at \((3, 2)\) and \((-1, 2),\) asymptotes at \( \displaystyle y - 2 = \pm \frac{1}{2}\left(x - 1\right);\) foci at \((1 \pm \sqrt{5}, 2).\)
Parabola opens up with vertex at \((0, -1),\) focus at the origin, and directrix \(y = -2\)
Circle with center at \((-1, -1)\) and radius 2.
Vertical hyperbola with center \((2, -3),\) vertices at \((2, 0)\) and \((2, -6),\) asymptotes at \(y + 3 = \pm (x - 2),\) and foci at \((2, -3 \pm 3\sqrt{2}).\)
Vertical hyperbola with center at \((-1, 3),\) vertices at \((-1, 6)\) and \((-1, 0),\) asymptotes \(y - 3 = \pm 3(x + 1),\) and foci \((-1, 3 \pm \sqrt{10}).\)
Vertical ellipse with center \((-1, 3),\) major axis 6, minor axis 2, vertices \((-1, 6)\) and \((-1, 0),\) endpoints of minor axis \((0, 3)\) and \((-2, 3),\) and foci \((-1, 3 \pm 2\sqrt{2}).\)
Parabola facing down, vertex at \((0, 4),\) focus at \( \displaystyle \left(0, \frac{15}{4} \right),\) directrix \( \displaystyle y = \frac{17}{4}.\)