Unit Test — Unit test Answers
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What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4?
A
1B
–1C
iD
–i22
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Which equation represents a graph with a vertex at (–3, 2)?
A
y = 4x2 + 24x + 38B
y = 4x2 – 24x + 38C
y = 4x2 + 12x + 2D
y = 4x2 + 16x + 1323
A box is to be constructed with a rectangular base and a height of 5 cm. If the rectangular base must have a perimeter of 28 cm, which quadratic equation best models the volume of the box? V = lwhP = 2(l + w)
A
y = 5(28 – x)(x)B
y = 5(28 – 2x)(x)C
y = 5(14 – x)(x)D
y = 5(14 – 2x)(x)24
Which phrase best describes the translation from the graph y = (x – 5)2 + 7 to the graph of y = (x + 1)2 – 2?
A
6 units left and 9 units downB
6 units right and 9 units downC
6 units left and 9 units upD
6 units right and 9 units up25
The graph represents the projected profits for a company, y, based on the number of units sold, x.
A
y less-than negative 2 (x + 25) squared minus 200
B
y greater-than 2 (x minus 25) squared + 200
C
y greater-than 2 (x + 25) squared minus 200
D
y less-than minus 2 (x minus 25) squared + 200
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