Question 7
In each of the following cases, state whether the function is one-one, onto or bijective. Justify your answer. (i) f : R → R defined by f (x) = 3 - 4x (ii) f : R → R defined by f (x) = 1 + x2
SOLUTION
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In each of the following cases, state whether the function is one-one, onto or bijective. Justify your answer. (i) f : R → R defined by f (x) = 3 - 4x (ii) f : R → R defined by f (x) = 1 + x2