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Test: Introduction To Functions - Question 1

If y is expressed in terms of a variable x as Y = ƒ(x), then y is called

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Test: Introduction To Functions - Question 2

Let f : R → R defined as f(x) = x be an identity function. Then

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Test: Introduction To Functions - Question 3

Let A = {1, 2, 3} and B = {5, 6, 7, 8, 9} and let f(x) = {(1, 8), (2, 7), (3, 6)} then f is

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Test: Introduction To Functions - Question 5

Let *f : N →N* be defined by for all n ∈ N.

Then, the function f is

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Test: Introduction To Functions - Question 10

A function f: X → Y is surjective if and only if

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Test: Introduction To Functions - Question 11

The range of function f : R → R defined by f(x) = x^{2} is

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Test: Introduction To Functions - Question 12

Let f : R → R defined as f(x) = 5 be a constant function. Then

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Test: Introduction To Functions - Question 14

Let f: {1, 2, 3} → {1, 2, 3} be an onto function. Then, f is

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