What is the equation of the quadratic graph with a focus of (5, 6) and a directrix of y = 2? f(x) = one eighth (x + 5)2 + 4 f(x) = −one eighth (x − 5)2 + 4 f(x) = one eighth (x − 5)2 + 4 f(x) = one eighth (x + 5)2 − 4

In this problem, given the focus at (3, 1) and directrix at y = 5, then it is implied that the parabola is facing upwards. The vertex hence is at the middle of the focus and the directrix, hence at (3, 3). The general formula of the parabola is y-k = 4a  ( x-h)^2. Substituting, y - 3 = 1/8 *(x-3)^2.

Answer is A

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .