question
Using the quadratic formula to solve 11x2 - 4x = 1, what are the values of x?
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.
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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?
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What is the sum of 12 - 5i and -3 + 4i?
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.
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What is the greatest possible integer value of x for which mc006-1.jpg is an imaginary number?
question
Which expression is equivalent to (4 + 6i)2?
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?
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?
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What is the y-value of the vertex of the function f(x) = -(x + 8)(x - 14)? The y-value of the vertex is
