Mini-Quizzy on vectors:

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Presentation transcript:

Mini-Quizzy on vectors: I. Given A(5,2) and B(8,-1), find: components

II. Given vectors u = (-3, 4) and v = (-7, -5), find:

III. Given vectors u = (5, 3) and v = (-7, 4): a) Show the graphical representation of u + v, using the parallelogram rule. b) | u + v | Just to check: (5, 3) + (-7, 4) (-2, 7) (5 + (-7) , 3 + 4) (-2, 7) b) | u + v |

WHAT IS THE DIFFERENCE? I. Given A(5,2) and B(8,-1), find: VS A(5,2) and B(8,-1) are endpoints of the one vector AB This is when you get the components by subtracting: the terminal minus the initial (B – A) II. Given vectors u = (-3, 4) and v = (-7, -5), find: 5u + 6v u = (-3, 4) and v = (-7, -5) are two separate and distinct vectors. Treat them as such. Do what is asked: multiply, add, subtract.

How do you review for this quiz? Look at the problems on this PowerPoint. Which ones did you have trouble with? Go over the assignments that covered those problems and work more problems. Byrd