Show that the function f(x) = -2x + 7 is a strictly decreasing functio – InterviewSolution

1.

Show that the function f(x) = -2x + 7 is a strictly decreasing function on R.

Answer»

It is given that

f(x) = -2x + 7

By differentiating w.r.t. x

f’(x) = – 2 < 0 for all value of x

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

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