Practice Quiz 8.1-8.3 Solutions

# Practice Quiz 8.1-8.3 Solutions - 6 4 5 =-=-=-z y x z y x z...

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Practice Quiz (8.1-8.3) Name: ______________________ Math 115-007 November 17, 2009 Solve each system of equations and determine whether the system is independent, dependent, or inconsistent. 1. 9 3 10 2 - = + = - y x y x 9 3 30 3 6 - = + = - y x y x 3 21 7 = = x x 4 10 6 - = = - y y Solution Set: { } ) 4 , 3 ( - ; Independent 2. 25 6 15 10 2 5 = + = + y x y x 25 6 15 30 6 15 = + - = - - y x y x 5 0 - = ; False! Solution Set: ; Inconsistent 3. 20 2 4 10 2 = - = - y x y x 20 2 4 20 2 4 = - = - y x y x ; Dependent Solution Set: { } 10 2 | ) , ( = - y x y x

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Practice Quiz (8.1-8.3) Name: ______________________ Math 115-007 November 17, 2009 4. 5 6 3 10 3 5 1 3 2 = - - - = + + - = - + z y x z y x z y x 5. 15 5 7 3 15 4 3 2 21
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Unformatted text preview: 6 4 5 =---= + +-=--z y x z y x z y x 6. 4 1 1 2 1 1 =-= + y x y x Practice Quiz (8.1-8.3) Name: ______________________ Math 115-007 November 17, 2009 7. 60 169 2 2 = = + xy y x 8. 1 2 2 2 =-=-y x x xy 9. 2 12 2 2 = + = + + y x y xy x 10. Write the equation of the quadratic function passing through the points a. ) 37 , 4 ( ), 65 , 3 ( ), 5 , 2 (-b. ) 3 , 4 ( ), 5 , 2 ( ), 3 , 1 (-...
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## This note was uploaded on 03/04/2012 for the course MATH 115 taught by Professor Ms.park during the Fall '09 term at South Carolina.

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Practice Quiz 8.1-8.3 Solutions - 6 4 5 =-=-=-z y x z y x z...

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