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Lesson 5.1 Quiz

# Lesson 5.1 Quiz - of geese on each of the next six weeks a...

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Lesson 1 Quiz Quadratic Equations and Functions Results of the quiz. 1. Find a quadratic model for the values in the table. CORRECT: f ( x ) = 3 x 2 + 7 x – 9 2. Identify the vertex and the axis of symmetry of the parabola. CORRECT: vertex: ( , ); axis of symmetry: x = 3. Is y = (2 x ) 2 + 5 x – 7 + 1 linear or quadratic? Identify the quadratic, linear, and constant terms. CORRECT: quadratic function quadratic term: 4 x 2 linear term: 5 x constant term: –6 4. A biologist took a count of the number of migrating geese in a state park, and recounted the park's population

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Unformatted text preview: of geese on each of the next six weeks. a. Find a quadratic function that models the data shown as a function of x , the number of weeks. b. Use the model to estimate the number of geese at the lake on week 8. • CORRECT: P ( x )= 42 x 2 – 186 x + 762; 1962 geese 5. The graph of y = –2 x 2 + 15 x + c contains (3, 89). Find the value of c . • INCORRECT: not here • CORRECT: 62 You got 4 out of 5 correct....
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