6568969
Beschreibung
Quiz von Lyzandra Andrade, aktualisiert more than 1 year ago
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Erstellt von Lyzandra Andrade
vor etwa 8 Jahre
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Frage 1
Frage
The two functions f and g defined by f(x) = 3x + 3 for x real and g(t) = 3t + 3 for t real and positive are equal?
Antworten
- True
- False
Frage 2
Frage
If functions f and g have domains Df and Dg respectively, then the domain of f / g is given by
Antworten
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The union of Df and Dg
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The intersection of Df and Dg
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The intersection of Df and Dg without the zeros of function g
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None of the above
Frage 3
Frage
The graph of f(x) and that of f(x + 2) are the same.
Antworten
- True
- False
Frage 4
Frage
Let the closed interval [a , b] be the domain of function f. The domain of f(x - 3) is given by
Antworten
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the open interval (a , b)
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the closed interval [a , b]
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the closed interval [a - 3 , b - 3]
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the closed interval [a + 3 , b + 3]
Frage 5
Frage
Let the interval (a , +infinity) be the range of function f. The range of f(x) - 4 is given by
Antworten
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the interval (a - 4 , +infinity)
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the interval (a + 4, +infinity)
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the interval (a, +infinity)
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None of the above
Frage 6
Frage
The equation y = | x | , with y >= 0, represents y as a function of x.
Antworten
- True
- False
Frage 7
Frage
The equation x = | y | , with x >= 0, represents y as a function of x.
Antworten
- True
- False
Frage 8
Frage
(x+4)^2+(y−6)^2 =48
What is its center?
Antworten
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(4,6)
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(-4,-6)
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(-4,6)
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(4,-6)
Frage 9
Frage
(x+9)^2+(y−46)^2 =123
What is its radius?
Antworten
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11.09
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6.78
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3
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12.34
Frage 10
Frage
(x−0.5)^2+(y−3.5)^2=16
The center is (0.5, 3.5)
Antworten
- True
- False
Frage 11
Frage
Fill in the blanks with the correct answers.
center (0,5) r=4
x^2+(y-5)^2=[blank_start]16[blank_end]
Antworten
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16
Frage 12
Frage
Center(2,-3) r=[blank_start]3[blank_end]
(x-2)^2+(y+3)^2=9
Antworten
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3
Frage 13
Frage
FOCI: The formula in solving a>b is c^2=b^2-a^2
Antworten
- True
- False
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