Question 742851
Half the distance from (2,6) to (2,-18) is the value, 'c'.  The minor axis being length 10 means that half of that distance, 5, is the value for 'b'.  The y value directly between (exact middle of) 6 and -18 is the y value for the center point, being (2, -12), which is also the academically described point usually called (h,k).


Standard Ellipse for Foci Vertical: {{{(x-h)^2/b^2+(y-k)^2/a^2=1}}}
Be aware, {{{a^2=b^2+c^2}}}.