Unit Test / Unit Test Review

8 September 2022
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question
Which equation represents a graph with a vertex at (1, -6)? y = 3x2 + 6x - 3 y = 3x2 - 6x - 3 y = 3x2 - 8x - 1 y = 3x2 - 3x - 6
answer
B
question
What is the greatest possible integer value of x for which is an imaginary number? 3 4 5 6
answer
B
question
What is the sum of 12 - 5i and -3 + 4i? -16 + 63i 9 - i 9 - 9i 15 - 9i
answer
B
question
Which point shows the location of 5 - 2i on the complex plane below? point A point B point C point D
answer
C
question
Louis used a quadratic equation to model the height, y, of a falling object x seconds after it is dropped. Which ordered pair generated by this model should be discarded because the values are unreasonable? (-4, 1) mc006-1.jpg mc006-2.jpg (6, 0)
answer
A
question
Which equation is y = 3(x - 2)2 - (x - 5)2 rewritten in vertex form?
answer
D
question
Which pair of complex numbers has a real-number product? (1 + 3i)(6i) (1 + 3i)(2 - 3i) (1 + 3i)(1 - 3i) (1 + 3i)(3i)
answer
C
question
What is the value of i 20+1? 1 -1 -i i
answer
D
question
What is the value of i 97 - i? -i 0 -2i
answer
B
question
Use the zero product property to find the solutions to the equation x2 - x - 6 = 0. x = -3 or x = -2 x = -3 or x = 2 x = -2 or x = 3 x = 2 or x = 3
answer
C
question
Use the zero product property to find the solutions to the equation x2 - 9 = 16. x = -3 or x = 3 x = -6 or x = -3 x = -5 or x = 5 x = 7 or x = 1
answer
C
question
Susan plans to use 120 feet of fencing to enclose a rectangular area for a garden. Which equation best models the area, y, of the rectangular garden that she creates if one side is x feet long?A = lw y = (60 - x)(x) y = (120 - x)(120 + x) y = (120 - x)(x) y = (60 - x)(60 + x)
answer
A
question
For what values of m does the graph of y = mx2 - 5x - 2 have no x-intercepts?
answer
B
question
When graphed, which parabola opens downward? y = -3x2 y = (x - 3)2 y = one-third x squared y = x2 - 3
answer
A
question
Adam is using the equation (x)(x + 2) = 255 to find two consecutive odd integers with a product of 255. When Adam solves the problem using the zero product property, what do those solutions represent? two possible "first" integers two possible "second" integers the two consecutive odd integers with a product of 255 a possible "first" integer and a possible "second" integer
answer
A