Section 7_1

Section 7_1 - y is y increasing? (Select all that apply.)...

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Section 7.1 http://www.webassign.net/v4cgicnyang@ncsu/student.pl?k=20070 ... 1 of 2 5/6/2007 12:51 AM 1. [SCalcCC2 7.1.04.] 0/4 points Last Response | Show Details All Responses Notes 2. [SCalcCC2 7.1.10.] 7/7 points Last Response | Show Details All Responses Notes WebAssign.net Sunday, May 6, 2007 12:51 AM EDT Logged in as cnyang@ncsu. Logout Home | My Assignments | Grades | Communication | Calendar Guide | Help | My Options Home > My Assignments > Section 7.1 (Homework) YANG CHI NGO MA 241, section 006, Spring 2007 Instructor: Ryan Therkelsen North Carolina State University About this Assignment Due: Tuesday, February 27, 2007 11:02 PM EST Current Score: 7.5 out of 11.5 Question Score Submission Options Description Modeling with Differential Equations For what values of r does the function y = e rt satisfy the differential equation y '' + y ' - 56 y = 0? r = -7 [-8] (smaller value) r = -6 [7] (larger value) A function y ( t ) satisfies the differential equation below. (a) What are the constant solutions of the equation? 0 [0] (smallest value) 1 [1] 5 [5] (largest value) (b) For what values of
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Unformatted text preview: y is y increasing? (Select all that apply.) [x] [x] (-, 0) [_] [_] (-, 1) [x] [x] (0,1) [_] [_] (0, 5 ) [_] [_] (0, 6 ) [_] [_] (1, 5 ) [_] [_] (1, 6 ) [_] [_] ( 6 , ) [x] [x] ( 5 , ) Section 7.1 http://www.webassign.net/v4cgicnyang@ncsu/student.pl?k=20070 ... 2 of 2 5/6/2007 12:51 AM 3. [SCalcCC2 7.1.12.] 0.5/0.5 points Last Response | Show Details All Responses Notes (c) For what values of y is y decreasing? (Select all that apply.) [_] [_] (-, 0) [_] [_] (-, 1) [_] [_] (0,1) [_] [_] (0, 5 ) [_] [_] (0, 6 ) [x] [x] (1, 5 ) [_] [_] (1, 6 ) [_] [_] ( 6 , ) [_] [_] ( 5 , ) The function with the given graph is a solution of one of the following differential equations. Decide which is the correct equation. (o) (o) y ' = 1 - 2 xy (_) (_) y' = -2xy (_) (_) y' = 1 + xy Home My Assignments WebAssign 4.0 1997-2003 by North Carolina State University. Portions 2003-2007 by Advanced Instructional Systems, Inc. All rights reserved....
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Section 7_1 - y is y increasing? (Select all that apply.)...

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