FinalreviewSolns

# FinalreviewSolns - Chapters 1,2,4,5,6 8 Quick Review for...

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Quick Review for Final Name: Look over the previous quizzes, reviews, and tests to study for the ﬁnal. Also study worksheets, examples done in class, and WP homework. 1. Given that the focal point is (0,-3), what is the focal length? What is a ? Solution: The focal length is exactly | - 3 | = 3. To ﬁnd a , - 3 = 1 4 a a = - 1 12 . 2. Sketch y = x 2 . On the same plot, re-sketch y = x 2 stretched by a factor of 4, and then that resulting function shifted left 1 unit, and then down by 3 units. What happens to the vertex at each stage? 3. Given that the two zeros of f ( x ) are 3 and - 4, ﬁnd the axis of symmetry. Solution: The axis of symmetry is exactly the vertical line x = x 1 + x 2 2 , and you are given that x 1 = 3 and x 2 = - 4. So the axis of symmetry is x = - 1 2 .

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Review Page 2 4. Factor y = x 2 - 100 x - 1000 and state the zeros. Solution: x 2 - 100 x - 1000 should be x 2 - 90 x - 1000. Make this correction. -
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FinalreviewSolns - Chapters 1,2,4,5,6 8 Quick Review for...

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