Prove that f(x) = ax + b, where a and b are constants an a > 0, is a s – InterviewSolution

1.

Prove that f(x) = ax + b, where a and b are constants an a > 0, is a strictly increasing function on R.

Answer»

It is given that

f(x) = ax + b

By differentiating w.r.t. x

f’(x) = a > 0 for all x

Therefore, f(x) is strictly increasing function on R.

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