Function Operations Answers
7 verified answers
1
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Which expression is equivalent to ?
A
f (5) times g (5)
B
f (5) + g (5)
C
5 f (5)
D
5 g (5)
3
The graphs of f(x) and g(x) are shown below. Which of the following is the graph of (g – f)(x)?
A
On a coordinate plane, a straight line with a negative slope goes through points (negative 2, 6), (0, 0), and (2, negative 6)
B
On a coordinate plane, a straight line with a negative slope goes through points (negative 6, 6), (0, 0), and (6, negative 6).
C
On a coordinate plane, a straight line with a positive slope goes through points (negative 2, negative 6), (0, 0), and (2, 6).
D
On a coordinate plane, a straight line with a positive slope goes through points (negative 6, negative 6), (0, 0), and (6, 6).
4
If p(x) = x2 – 1 and , which expression is equivalent to (p – q)(x)?
A
5(x – 1) – x2 – 1B
(5x – 1) – (x2 – 1)C
(x2 – 1) – 5(x – 1)D
(x2 – 1) – 5x – 16
Which expression is equivalent to (st)(6)?
A
s(t(6))B
s(x) × t(6)C
s(6) × t(6)D
6 × s(x) × t(x)7
Which expression is equivalent to (f + g)(4)?
A
f(4) + g(4)B
f(x) + g(4)C
f(4 + g(4))D
4(f(x) + g(x))8
Which expression is equivalent to (st)(6)?
A
s(t(6))B
s(x) × t(6)C
s(6) × t(6)D
6 × s(x) × t(x)9
The graphs of f(x) and g(x) are shown below. For what interval is the value of (f – g)(x) negative?
A
(negative infinity, negative 1)
B
(negative infinity, 2)
C
(0, 3)
D
(2, infinity)
10
If f(x) = 3 – 2x and , what is the value of ?
A
–169B
–1C
13D
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