1. Which of the following is a vector quantity? A. time B. force C. mass D. temperature E. none of these 2. Given the points B(-3, 1, -2) and C(3, -5, 10) the vector BC is A. [6, -6, 12] B. [-6, 6, -12] C. [-5, -4, 8] D. [1, -1, 2] E. [-1, 1, -2] 3. Given |a | = 5, |b | = 6 and the angle between them is 60, then a .b = A. 15 B. 30 C. 51.96 D. 5.5 E. none of these 4. If d x h = [2, 6,7] , then h x d = A. [2, 6,7] B. [7, 6,2] C.- [ 2,6, 7] D. [ 6,7,2] E. none of these 5. Which of the following yields a vector perpendicular to both original vectors? A. dot product B. scalar product C. cross product E. none of these 6. The graph of the function y = f (x) is always concave up where A. f ' (x ) = 0 B. f "( x ) =0 C. f "( x ) O E. f '( x ) So 7. d [ 2e * ] = dx A. 203x B. e3x C. 2ex D. 603x E. none of these 8. If y = sin5x , then y ' = A. - Cos5x B. 5cosx C. -5cos5x D. 5cos5x E. none of these 9. What kind of line shows an instantaneous rate of change the best? A. a secant line B. a tangent line 10. An interval upon which a function has a negative derivative it is said to be A. concave up B. increasing C. concave down D. decreasing E. none of these 11. An interval upon which a function has a positive second derivative the function is said to be A. concave up B. increasing C. concave down D. decreasing E. none of these