Lesson 5.5 Quiz

# Lesson 5.5 Quiz - • CORRECT –3.5 –0.5 4 Solve 2 x 2...

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Lesson 5 Quiz Quadratic Equations and Functions Results of the quiz. 1. Solve 6 x 2 = 48. If necessary, round your answer to the nearest hundredth. CORRECT: ±2 ≈ ±2.83 2. A rocket is launched from atop a 63-foot cliff with an initial velocity of 95 feet per second. The height of the rocket t seconds after launch is given by the equation h = –16 t 2 + 95 t + 63. Graph the equation to find out how long after the rocket is launched it will hit the ground. Estimate your answer to the nearest hundredth of a second. INCORRECT: 2.97 sec CORRECT: 6.54 sec 3. Solve –4 x 2 – 16 x – 7 = 0 by graphing. If necessary, round your answer to the nearest tenth.

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Unformatted text preview: • CORRECT: –3.5, –0.5 4. Solve 2 x 2 – 3 x – 5 = 0 by factoring. • CORRECT: , –1 5. A rocket is launched from atop a 54-foot cliff with an initial velocity of 119 feet per second. The height of the rocket t seconds after launch is given by the equation h = –16 t 2 + 119 t + 54. Graph the equation to find out how long after the rocket is launched it will hit the ground. Estimate your answer to the nearest hundredth of a second. • CORRECT: 7.87 sec You got 4 out of 5 correct....
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Lesson 5.5 Quiz - • CORRECT –3.5 –0.5 4 Solve 2 x 2...

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