Linear Piecewise Defined Functions — Unit test Answers
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1
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Which represents the reflection of f(x) = over the x-axis?
A
A 2-column table has 4 rows. The first column is labeled x with entries negative 1, 0, 1, 4. The second column is labeled f (x) with entries undefined, 0, negative 1, negative 2.
B
A 2-column table has 4 rows. The first column is labeled x with entries negative 1, 0, 1, 4. The second column is labeled f (x) with entries 1, 0, undefined, undefined.
C
On a coordinate plane, an absolute value graph starts at (0, 0) and goes down and to the left through (negative 4, negative 2).
D
On a coordinate plane, an absolute value graph starts at (0, 0) and goes down and to the right through (2, negative 4).
2
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The factor tree for 1,764 is shown.
A
21B
42C
32(72)D
22(32)(72)3
The function f(x) = is shown on the graph.
A
The domain of the function is all real numbers greater than or equal to 0.B
The range of the function is all real numbers greater than or equal to −1.C
The range of the function is all real numbers less than or equal to 0.D
The domain of the function is all real numbers less than or equal to 0.4
What is the simplified form of ? Assume x ≠ 0.
A
StartFraction 6 Over 5 x Superscript 10 Baseline EndFraction
B
StartFraction 6 Over 5 x squared EndFraction
C
Six-fifths x Superscript 10
D
Six-fifths x squared
5
Which is the graph of f(x) = ?
A
On a coordinate plane, a parabola opens up with a vertex at (0, 0).
B
On a coordinate plane, an absolute value graph starts at (0, 0) and goes up through (2, 4).
C
On a coordinate plane, a parabola opens to the right with a vertex at (0, 0).
D
On a coordinate plane, an absolute value graph starts at (0, 0) and goes up through (4, 2).
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