I need help solving problems 41 and 45

By considering traces, match each equation in Exercises 41-46 with its graph in (a)-(f), on the following page. (See Example 7.) 41. 2 = x2+ v2 42. 22 - 12 - x2= 1 43. x- - vz = Z 44. z - v2 -x2 45. + 46. z = 5(x2 + 1/2)-1/2 16 25