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Chapter 4 Section 5.B Solving Quadratics by Finding Square Roots In this assignment, you will be able to... 1.Solve a quadratic equation. 2. Model a dropped object with a quadratic function.

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1.) Solve the equation.

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Answer:

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2.) Solve the equation.

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Answer:

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3.) Solve the equation.

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Answer:

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4.) Solve the equation.

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Answer:s=13 or s=-13

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5.) Solve the equation.

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Answer:

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Solve the equation. 6.)

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Answer:

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Solve the equation. 7.)

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Answer:

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Solve the equation. 8.)

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Answer:x=2 or x=6

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A cliff diver dives off a cliff 40 feet above water. Write an equation given the diver's height h (in feet) above water after t seconds. How long is the diver in the air? 9.)

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Answer: Word problem, use calculator About 1.6 seconds.

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10.) An object is dropped from a building 200 feet above the ground. How long until the object hits the ground?

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Answer:About 3.54 seconds.

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11.) On any planet, the height h (in feet) of a falling object t seconds after it is dropped can be modeled by where is the object's initial height (in feet)and g is the acceleration (in feet per second squared) due to gravity. Find the time it takes a rock dropped from a height of 150 feet to hit the surface on Mars where

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Answer:5 seconds

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12.)Graph the equation Label the vertex and axis of symmetry

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Answer:

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13.) The path of a basketball travels along a path that is modeled by where x is the time in seconds and y is the height. After how many seconds is the ball at it's maximum height and what is that height?

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Answer: 25 seconds 18.5 feet

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14.)Solve the equation

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Answer:-1, 8/3

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15.) Solve the quadratic equation. Label each step.

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