1. Describe and sketch the surface 1.1 ^2 +4^2 =4 1.2 - ^2 =0

2. Given the following equations, - Draw the traces, with all their elements. - Classify and draw the surface. 2.1 = ^2 +4^2 2.2 ^2 =^2 +4 ^2 2.3 -^2 +4 ^2 -^2 =4 2.4 36^2 +^2 +36^2 =36 2.5 ^2 =4 ^2 +9^2 +36 2.6 =2^2 +3^2

3. Find the equation of the plane 3.1 The plane through the point (6,3,2) and perpendicular to the vector -2,1,5. 3.2 The plane through the point (-2, 8, 10) and perpendicular to the line =1+, =2, =4-3. 3.3 The plane through the origin and the points (2, - 4, 6) and (5, 1, 3).