question

Using the quadratic formula to solve 11x2 - 4x = 1, what are the values of x?

answer

A.

question

What are the values of x in the equation x2 - 6x + 9 = 25?

answer

A. x = -2 or x = 8

question

Which pair of complex numbers has a real-number product?

answer

C. (1 + 3i)(1 - 3i)

question

Solve for mc014-1.jpg in the equation mc014-2.jpg.

answer

D.

question

Which equation is an example of the commutative property of multiplication?

answer

B. (4 + 2i)(3 - 5i) = (3 - 5i)(4 + 2i)

question

A point of the form 25 +bi is 37 units from 13 - 31i. What is the value of b?

answer

A. 4

question

What is the sum of 12 - 5i and -3 + 4i?

answer

B. 9 - i

question

The following statements concern the modulus. Which statement is false?

answer

C. The modulus is sometimes negative because of the computations with i.

question

If the discriminant of a quadratic equation is 4, which statement describes the roots?

answer

B. There are two real roots.

question

What is the greatest possible integer value of x for which mc006-1.jpg is an imaginary number?

answer

B. 4

question

Which expression is equivalent to (4 + 6i)2?

answer

A. -20 + 48i

question

Which function has a vertex on the y-axis?

answer

C. f(x) = (x - 2)(x + 2)

question

An isosceles triangle's altitude will bisect its base. mc026-1.jpg Which expression could be used to find the area of the isosceles triangle above?

answer

A.

question

Dimitri is solving the equation x2 - 10x = 21. Which value must be added to both sides of the equation to make the left side a perfect-square trinomial?

answer

C. 25

question

What is the y-value of the vertex of the function f(x) = -(x + 8)(x - 14)? The y-value of the vertex is

answer

121