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EOC PREP Session B
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Identify a.) the vertex b.) the axis of symmetry and c.) both the x and y intercepts of each quadratic function. A B
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Convert the equation labeled B to vertex form
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1.)The height of a ball thrown straight up in the air with a velocity of 4 meters per second can be modeled by the equation, where h is the height in meters and t is the time in seconds? What does the constant term 2 indicate? a.)The ball is thrown from two meters above the ground b.)The ball falls at a rate of 2 meters per second c.)The ball’s maximum height is 2 meters d.)The ball reaches its highest point after 2 seconds
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1.)The height of a ball thrown straight up in the air with a velocity of 4 meters per second can be modeled by the equation, where h is the height in meters and t is the time in seconds? What does the constant term 2 indicate? 2.) What is the maximum height of the ball in problem 1?
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3.) Which of the following quadratic functions does not have zeroes of -15 and 6? a.) b.) c.) d.)
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5.) The profit (P) in dollars, for a company is modeled by the function, where x is the number of items produced. For which values of x will the company lose money? a.) b.) c.) d.)
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2.What is the simplified form of the expression a.) b.) c.) d.)
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3.)What is the simplified form of the expression a.) -400 b.) -20 c.) 20 d.) 400
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4.)What are the factors of the expression a.) b.) c.) d.)
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5.) What is the sum of the polynomials a.) b.) c.) d.)
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6.) The volume of a sphere is given by, where r is the radius of the sphere. What is an approximate value of r when V=3370 cubic inches. a.) 9.3 in b.) 13.6 in c.) 20.0 in d.) 28.4 in
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7.) A reflecting pool measuring 20 feet by 8 feet is to be surrounded by tiles in a border x feet wide. The garden designer can spend $1500 on tiles. Which expression represents the maximum cost per mi2 ? a.) b.) c.) d.)
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8.) The variable z varies directly with x and inversely with with y. When x=4 and y=2, z=4. What is the value of x when y=32 and y=1/2 a.) b.) c.) 4 d.) 8
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10.) Given What is the value of x in the solution of this system? a.) -4 b.) -1 c.) 2 d.) 3
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