What is the standard form of the equation of the parabola with a directrix at x=-5 and a focus at (-6,7)?
1 Answer
Aug 6, 2018
#(y-7)^2=-2(x+5.5)#
Explanation:
Given -
Focus
Directrix
Vertex
#a=0.5#
Then the formula for the parabola is -
#(y-k)^2=-4a(x-h)#
#(y-7)^2=-4(0.5)(x+5.5)#
#(y-7)^2=-2(x+5.5)#