InterviewSolution
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Let f : R ➝ R be defined by f(x) = 1 – |x|. Then the range of f is …..(a) R (b) (1, ∞) (c) (-1, ∞) (d) (-∞, 1] |
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Answer» (d) (-∞, 1] f: R ➝ R defined by f(x) = 1 – |x| For example, f(1) = 1 – 1 = 0 f(8) = 1 – 8 = -1 f(-9) = 1 – 9 = -8 f(-0.2) = 1 – 0.2 = 0.8 so range = (-∞, 1] |
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