| 1 |
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| 2 |
Which one is an identity function ? |
- A.
- B. f(x) = g(x)
- C. f (x) = x
- D. f(x) = 1
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| 3 |
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- A. Even
- B. Odd
- C. One-one
- D. Zero
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| 4 |
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- A. 4, -4
- B. 0
- C. 2, -2
- D. 0, 4
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| 5 |
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- A. R
- B. R - {2}
- C. R - {2, -2}
- D. R - {-2}
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| 6 |
If x and y are so mixed up and y cannot be expressed in terms of the independent variable x, then y is called a/an ---- function of x. |
- A. Constant
- B. Explicit
- C. Implicit
- D. Inverse
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| 7 |
If y = (x), then the variable x is called --------- variable of a function f. |
- A. Dependent
- B. Independent
- C. Image of y
- D. None of these
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| 8 |
tanh x = |
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| 9 |
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| 10 |
The linear function f(x) = ax + b is an identity function if: |
- A. a = 0, b = 1
- B. a = 1, b = 0
- C. a = 1, b = 1
- D. a = 0, b = 1
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