Pre cal | multiple choice | apex

which conic section does the equation below describe?

( x-9 )^2/4 + ( y+2 )^2/25=1

a. circle

b. ellipse

c. hyperbola

d. parabola

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer