Exam 12: Quadratic Equations and Functions

Solve the problem. Give the answer to the nearest tenth. -The position of an object moving in a straight line is given by s = - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 16 feet?

Without graphing, find the maximum value or minimum value. -f(x) = - 4

Find the vertex. -f(x) = - 40x + 104

Solve the equation by completing the square. - - 10a + 9 = 0

Find the x- and y-intercepts. -f(x) = + 8x + 3

Write the word or phrase that best completes each statement or answers the question.Provide an appropriate response. -Compare the graphs of What restrictions, if any, must be placed on a, h,and k if both graphs are to have the same x-intercepts?

Solve. Provide answers in interval notation. -

Solve. -A square has an area of 49 square inches. If the same amount is added to the length and removed from the width, the resulting rectangle has an area of 45 square inches. Find the dimensions of the rectangle.

Solve. Provide answers in interval notation. - + 8x + 12 0

Graph. -

Solve. -

Solve. - = -8n - 1

Find the x-intercepts. -f(x) = + 17x - 72

Solve by completing the square. -x2 = 7 - 8x

Solve. Give exact solutions. - + 8x + 16 = 17

Solve. -

Solve by completing the square. - + 8z - 5 = 0

Solve. Provide answers in interval notation. -(c + 7)(c + 5)(c - 6) > 0

Solve. -

Write the word or phrase that best completes each statement or answers the question.Provide an appropriate response. -Explain without plotting points, why the graph of ooks like the graph of translated three units to the left.