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Show that the function f(x)=-3x+12 is st...

Show that the function `f(x)=-3x+12` is strictly decreasing function on `R` .

Text Solution

Verified by Experts

It is given that `f(x)=-3x+12`
By differentiating w.r.t. x` f’(x) = – 3 < 0`
for all value of x
Therefore, f(x) is strictly decreasing function on R.
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