Unit Test — Unit test Answers
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Consider the function.
A
Option
B
Option
C
f(x) = 2 |x + 2|D
f(x) = |x – 4|22
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Which statement explains why the value of is 2 but the value of is –3?
A
because 2 is the greatest integer not greater than 2.4, and –3 is the greatest integer not greater than –2.4B
because 2.4 rounds to 2, and –2.4 rounds to –3C
because 2.4 is positive, and –2.4 is negativeD
because 2 is the least integer greater than 2.4, and –3 is the least integer greater than –2.423
At a skills competition, a target is being lifted into the air by a cable at a constant speed. An archer standing on the ground launches an arrow toward the target. The system of equations below models the height, in feet, of the target and the arrow t seconds after it was fired. Which statement most likely describes the situation modeled by this system?
A
The arrow is fired with an initial upward velocity of 2 ft/s.B
The arrow is fired with an initial upward velocity of 4 ft/s.C
The arrow is fired with an initial upward velocity of 8 ft/s.D
The arrow is fired with an initial upward velocity of 32 ft/s.24
Which function has the greatest x-intercept?
A
f(x) = 3x – 9B
g(x) = |x + 3|C
h(x) = 2x – 16D
j(x) = –5(x – 2)225
Which graph represents the following piecewise defined function?
A
mc006-2.jpg
B
mc006-3.jpg
C
mc006-4.jpg
D
mc006-5.jpg
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