1. The vector in rectangular coordinates (-1, 1) has length A. 1 B. 2 C. v2 D. V3 E. 3 2. The vector in rectangular coordinates (-1, 1) is pointing in which directic A. B. C. T D. E. None of the above 3. If 7 = (2, -3) and 7 = (1,5), then | |7 - 0/ = A. V3 B. V5 C. VII D. V65 E. V73 4. What is the graph of the equation y' = -1 - 4? A. upwards opening parabola B. downwards opening parabola C. rightwards opening parabola D. leftwards opening parabola E. None of the above 5. What type of conic section is represented by 432 + 9y = 36? A. a line B. a parabola C. a circle D. an ellipse E. a hyperbola