Identify the conic section $$$y - 2 = - \frac{x^{2}}{8}$$$
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Identify and find the properties of the conic section $$$y - 2 = - \frac{x^{2}}{8}$$$.
Solution
The general equation of a conic section is $$$A x^{2} + B x y + C y^{2} + D x + E y + F = 0$$$.
In our case, $$$A = \frac{1}{8}$$$, $$$B = 0$$$, $$$C = 0$$$, $$$D = 0$$$, $$$E = 1$$$, $$$F = -2$$$.
The discriminant of the conic section is $$$\Delta = 4 A C F - A E^{2} - B^{2} F + B D E - C D^{2} = - \frac{1}{8}$$$.
Next, $$$B^{2} - 4 A C = 0$$$.
Since $$$B^{2} - 4 A C = 0$$$, the equation represents a parabola.
To find its properties, use the parabola calculator.
Answer
$$$y - 2 = - \frac{x^{2}}{8}$$$A represents a parabola.
General form: $$$\frac{x^{2}}{8} + y - 2 = 0$$$A.
Graph: see the graphing calculator.