jeopardy math review evaluating a function examining f(x) examining the graph of f(x) combining...
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Jeopardy Math ReviewEvaluating a
FunctionExamining
f(x)
Examining the Graph of f(x)
Combining Functions
Inverses
100 100 100 100 100
200 200 200 200 200
300 300 300 300 300
400 400 400 400 400
500 500 500 500 500
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Is f(x) from Set A to Set B a function?Set A {5, 8, -2, 5, 4}Set B {2, 9, -3, -10, 5}
Answer: No
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Answer: f(5) = 66
Find f(5) given f(x) = 3x2-9
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Answer: x = -3, 3
Find f(x) = 5 given f(x) = 2x2 - 13
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Answer: f(x+2) = 3x2 +12x +2
Evaluate f(x+2) given f(x) = 3x2 - 10
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Given f(x) = x2 – 2x + 1 find the zeros of f(x).
Answer: x = 1
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Define the domain of
Answer: x cannot be 4
82
2)(
x
xf
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Define the domain of f(x):
Answer: x has to be greater than or equal to 3
93)( xxf
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Determine if f(x) = 5x2 - 5x + 2 is even, odd, or neither:
Answer: neither
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Find the points of intersection of f(x) = x2 and g(x) = -3x + 10.
Answer: x = -5, 2
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Find the average rate of change of f(x) = 5x-2 from x = -3 to x = 2
Answer: ARC = 5
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Determine if the graph represents a function:
Answer: Yes, it is a function.
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Answer: Domain [-5, 5] Range [0, 4]
Find the domain and range of the graph:
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Describe any increasing, decreasing, or constant intervals of the graph as well as relative min/max values:
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Identify the Parent Function and describe the shifts/transformations of the graph:
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Write the equation of the line given the reciprocal parent function and with shift values of A = -2, B = 3, C = -5.
Answer: f(x) = -2 - 5x + 3
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Answer: x2 + 3x - 4
Calculate f(x) + g(x)
Given f(x) = 3x – 8 and g(x) = x2 + 4
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Answer: -x2 + 3x -12
Calculate f(x) – g(x)
Given f(x) = 3x – 8 and g(x) = x2 + 4
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Answer: 3x3 - 8x2 + 12x -32
Calculate f(x)•g(x)
Given f(x) = 3x – 8 and g(x) = x2 + 4
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Answer:
Calculate f(x) g(x)
Given f(x) = 3x – 8 and g(x) = x2 + 4
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Answer: 3x2 + 4
Calculate f(g(x)):
Given f(x) = 3x – 8 and g(x) = x2 + 4
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The graph of an inverse function is a reflection over…
Answer: The line y = x.
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Determine if the graph is one-to-one:
Answer: No
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Answer: The inverse may exist, but is NOT a function
If a function is not one-to-one, what does that mean in terms of inverses?
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Answer
Calculate the inverse of f(x) = 3 .4x - 5
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Answer
Calculate the inverse of f(x).
xxf 49)(