Section 7.1

# Section 7.1 - 9 9[x[x 8(c For what values of y is y...

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Section 7.1 (Homework) 1. [SCalcCC2 7.1.04.] 4/4 points Last Response | Show Details All Responses Notes For what values of r does the function y = e rt satisfy the differential equation y '' + y ' - 20 y = 0? r = -5 -5 (smaller value) r = 4 4 (larger value) 2. [SCalcCC2 7.1.10.] 7/7 points Last Response | Show Details All Responses Notes A function y ( t ) satisfies the differential equation below. (a) What are the constant solutions of the equation? 0 0 (smallest value) 1 1 8 8 (largest value) (b) For what values of y is y increasing? (Select all that apply.)

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[x] [x] (- , 0) [_] [_] (- , 1) [x] [x] (0,1) [_] [_] (0, 8 ) [_] [_] (0, 9 ) [_] [_] (1, 8 ) [_] [_] (1,
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Unformatted text preview: 9 ) [_] [_] ( 9 , ) [x] [x] ( 8 , ) (c) For what values of y is y decreasing? (Select all that apply.) [_] [_] (-, 0) [_] [_] (-, 1) [_] [_] (0,1) [_] [_] (0, 8 ) [_] [_] (0, 9 ) [x] [x] (1, 8 ) [_] [_] (1, 9 ) [_] [_] ( 9 , ) [_] [_] ( 8 , ) 3. [SCalcCC2 7.1.12.] 0.5/0.5 points Last Response | Show Details All Responses Notes The function with the given graph is a solution of one of the following differential equations. Decide which is the correct equation. (_) (_) y ' = 1 + xy (_) (_) y ' = -2 xy (o) (o) y ' = 1 - 2 xy...
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## This note was uploaded on 10/28/2010 for the course MA MA 241 taught by Professor Lesliekurtz during the Spring '10 term at N.C. State.

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Section 7.1 - 9 9[x[x 8(c For what values of y is y...

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