1. write the equation of an ellipse center (3,1) and major axis of length 6, minor axis of length 2 with major axis parallel to the y axis.
2. find the center, vertices, and foci of the ellipse (x+4)^2 / 9 +(y+2)^2 / 4 =1
3. find the center, the transverse axis, the vertices and foci of the hyperbola (x+3)^2 /4 -(y-2)^2 / 9 =1
4. if f(x) = -f(x), the function is symmetric with respect to the x axis