Graphing Polynomial Functions — Unit test Answers

What are the solutions of the equation (x + 2)2 – 2(x + 2) – 15 = 0? Use u substitution to solve.

Which polynomial function could be represented by the graph below?

What is the end behavior of the graph of the polynomial function f(x) = –x5 + 9x4 – 18x3?

What is the polynomial 3y2 + (y + 7)2 – 15 after it has been fully simplified and written in standard form?

What is the product?(5r − 4)(r2 − 6r + 4)

Which second degree polynomial function f(x) has a lead coefficient of 3 and roots 4 and 1?

The price that a company charged for a computer accessory is given by the equation where x is the number of accessories that are produced, in millions. It costs the company $10 to make each accessory. The company currently produces 2 million accessories and makes a profit of 100 million dollars. What other number of accessories produced yields the same profit?

Which polynomial function has x-intercepts –1, 0, and 2 and passes through the point (1, –6)?

If (x – 5) is a factor of f(x), which of the following must be true?

One root of a third degree polynomial function f(x) is –5 + 2i. Which statement describes the number and nature of all roots for this function?

Which of the following is the complete list of roots for the polynomial function ?

If (x + k) is a factor of f(x), which of the following must be true?

The polynomial 8x2 – 8x + 2 – 5 + x is simplified to 8x2 – gx – h. What are the value of g and h?

What is the remainder when (3x3 – 2x2 + 4x – 3) is divided by (x2 + 3x + 3)?

If 5 + 6i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?