Consider the conic section given by the equation Then an appropriate rotation of coordinate axes to eliminate the term is given by the equations


After applying this rotation, we obtain the following equation in and

(Do NOT simplify the equation you get by multiplying or dividing by any factor.)
Which conic section is it? (Acceptable answers are: ellipse, hyperbola and parabola.)
Answer:
The first focus of this conic has coordinates (,). (Order the foci lexicographically according to the order of their and coordinates, ie. precedes and precedes .)
The second focus of this conic has coordinates (,). (If the conic is a parabola, just repeat the coordinates of the first focus.)
The equation of the directrix is . (If the conic is a parabola, write the directrix in the form or , then apply an appropriate rotation of axes to get an equation in and . If the conic is an ellipse or hyperbola, write the equation , an impossible equation.)
The axis of the conic has equation . (The axis of a conic is the line joining the foci and the vertices. For an ellipse this is also known as the major axis. Write the equation in the form or , then apply an appropriate rotation of axes to get an equation in and .)
The asymptote of smaller slope has equation . (If the conic is not a hyperbola put on the right hand side of the equation, giving an impossible equation.)
The asymptote of larger slope has equation . (If the conic is not a hyperbola put on the right hand side of the equation, giving an impossible equation.)

You can earn partial credit on this problem.