University:
California State University, Northridge
Course:
MATH 250 | Calculus III
Academic year:

2013
Views:

123

Pages:

10
Author:

noctuvigilusi9t

MATH 250, Midterm 1 Name: (print) _____ &�o_& __ -17_.�__ 0y/J'_, ____ This test includes 8 questions (total of 50 points), on 10 pages. The duration of the test is 60 minutes. Your scores: (do not enter answers here) 1 2 3 4 5 6 7 total 8 Important: The test is closed books/notes. A basic scientific calculator is allowed; no graphing calculators or other electronic devices. Give complete solutions to problems; no credit will be given for just the correct answers. 1. (4 points) Find an equation of the sphere that has center at P(-1, 2, 0) and touches the plane x = l. Determine the point where it touches the plane. T� sp&-re -f� ,�� p� - if 1 -lot-,( I� te..a J-t_ 1 � t-C...A.. Q (t-J �o) � p-ro;·�c. .f/OJ;-. �Jc,, a� ft-e f� T�:s /de�·vt.R! � yo.-o.l,it.,t I /PQ I== ,2_ /K=-t},