Chapter 9: Q78. (page 535)
SHORT RESPONSES Dylan delivers newspapers for extra money. He starts delivering the newspapers at 3:15 PM and finishes at 5:05 PM. How long does it take Dylan to complete his route?
Time taken by Dylan to complete his route is 110 minutes.
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Solve each equation by completing the square. Round to the nearest tenth if necessary.
Determine whether each trinomial is a perfect square trinomial. Write yes or no. If so, factor it.
Look for a pattern in each table of values to determine which kind of model best describes the data. Then write an equation for the function that models the data.
| x | 0 | 1 | 2 | 3 | 4 |
| y | 1 | 3 | 5 | 7 | 9 |
Solve each equation by completing the square. Round to the nearest tenth if necessary.
Record your answers on the answer sheet provided by your teacher or on a sheet of paper.
Use the graph of the quadratic equation shown below to answer each question.
A What is the vertex?
B What is the
C What is the axis of symmetry?
D What are the roots of the corresponding quadratic equation?
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