Exam 7: Quadratic Expressions, Equations and Functions

An electronics company has found that when a certain model of cellular phone is sold for a price of p dollars, the revenue R as a function of price p is . Determine the prices for which revenue will exceed

Solve the following equations. -

For the following expressions perform the indicated operations and simplify. Write the answers in form. -

Solve the following equations. -

Solve the following equations. -

For the following questions assume that all variables in radicands are non-negative numbers. -Simplify.

Use a number line graph to represent the solutions to the given quadratic inequalities. -

Solve the following equations. -

Solve the following equations using the quadratic formula. -

Solve the following equations by completing the square. -

Use a number line graph to represent the solutions to the given quadratic inequalities. -

Solve the following quadratic inequalities and write your answer in interval notation. -

Solve the following quadratic inequalities and write your answer in interval notation. -

A landscaper has 180 feet of fencing to build to enclose a rectangular rose garden. The width of the garden is 24 feet shorter than the length of the garden. Find the length and width of the fence.

Solve the following equations by completing the square. -

Change the function so that the graph that represents the function is shifted: -7 units left and 3 units up

Solve the following quadratic inequalities and write your answer in interval notation. -

For the following functions use completing the square to rewrite the function in vertex form. -

The area of a trapezoid is given by the formula , where And Are the bases of the trapezoid and Is the height. One base of the trapezoid, Is twice as long as the other base, The height h is 6 in. less than If the area A is 108 Find And h.

Solve the following equations. -