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A function \(\mathrm{f}:\mathrm{ℝ}\to \mathrm{ℝ}\) defined as \(\mathrm{f}(x)={x}^{2}-4x+5\) is :

Q1

A function \(\mathrm{f}:\mathrm{ℝ}\to \mathrm{ℝ}\) defined as \(\mathrm{f}(x)={x}^{2}-4x+5\) is :

a

injective but not surjective.

b

surjective but not injective.

c

both injective and surjective.

d

neither injective nor surjective.

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