Math151OldQuiz5

Math151OldQuiz5 - Math 151 Name: _ QUIZ ON CHAPTER 12 MATH...

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Math 151 Name: ________________________ QUIZ ON CHAPTER 12 MATH 151 – SPRING 2003 – KUNIYUKI 100 POINTS TOTAL Show all work, simplify as appropriate, and use “good form and procedure” (as in class). Box in your final answers! No notes or books allowed. A scientific calculator is allowed. You may use mixed numbers instead of improper fractions in your answers. Don’t approximate. 1) Consider the equation xy y +-+ = 64 8 9 3 0 2 . Its graph is a parabola in the standard xy -plane. (Show your work at the bottom of the page.) (13 points total) a) Which way does the parabola open (down, left, right, or up)? b) What are the coordinates of the vertex of the parabola? c) What are the coordinates of the focus of the parabola?
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2) Consider the equation 321 8 4 1 7 0 22 xy x y ++- + = . Its graph is an ellipse in the standard xy -plane. (Show your work at the bottom of the page.) (24 points total) a) What are the coordinates of the vertices of the ellipse? b) What are the coordinates of the foci of the ellipse?
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Math151OldQuiz5 - Math 151 Name: _ QUIZ ON CHAPTER 12 MATH...

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