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Math 115 Recitation 4

# Math 115 Recitation 4 - PRECALCULUS Recitation 4 Problems...

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PRECALCULUS – Recitation 4 Problems to go over in Class: (See Sec 3.1 #25) Express the quadratic function in standard form. Find its maximum or minimum value. (See Sec 3.1 #35) Find the maximum or minimum value of the quadratic function . (See Sec 3.1 #43) Find a function whose graph is a parabola with vertex and that passes through the point . (See Sec 3.1 #61) Use a calculator to find all x- values that produce a local maximum and minimum values for the function . State your answer correct to two decimal places. (See Sec 3.1 #75*) Fencing a Horse Corral Carol has 2400 feet of fencing to fence in a rectangular horse corral. a. Find a function that models the area of the corral in terms of the width x of the corral. b. Find the dimensions of the rectangle that maximizes the area of the corral. (See Sec 3.2 #17) Sketch the graph of the polynomial function . Make sure your graph shows the x -intercepts and the end behavior of the function. (See Sec 3.2 #24) Sketch the graph of the polynomial function . Make sure your graph shows the x -intercepts and the end behavior of the function.

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