Section 1_7

# Section 1_7 - Section 1.7...

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Section 1.7 (Homework) MACE JOHN RANDALL MA 141, section 007, Fall 2008 Instructor: Kyle Thompson Web Assign Current Score: 18 out of 18 Due: Thursday, September 11, 2008 10:03 PM EDT Description Parametric Curves The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. [SCalcCC2 1.7.10.] 1/1 points You are given the following. x = 3 cos θ , y = 4 sin θ , - π /2 θ π /2 (a) Eliminate the parameter to find a Cartesian equation of the curve. 1 = (x^2/9)+(y^2/16) (x/3)^2 + (y/4)^2 (b) Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases. (Do this on paper. Your teacher may ask you to turn in this work.) 2. [SCalcCC2 1.7.12.] 1/1 points You are given the following. (a) Eliminate the parameter to find a Cartesian equation of the curve. y = sqrt(exp(x)) exp(x/2) , where x 0 (b) Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases. (Do this on paper. Your teacher may ask you to turn in this work.)

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Section 1_7 - Section 1.7...

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