Find the coordinates of the focus and the equation of the directrix for 2x²+5y=0?
1 Answer
Jun 23, 2018
Focus
Explanation:
I remember the focus and directrix of
Here we have
Let's plot these. Here's the tricky thing I enter to plot multiple functions and points with the Socratic
0=(y-1/10)(2x^2+5y)( x^2+ (y+1/10)^2 - .02^2)
graph{0=(y-1/10)(2x^2+5y)( x^2+ (y+1/10)^2 - .01^2) [-1.25, 1.25, -0.625, 0.625]}