Question

The function f(x) = 3/x +7 is strictly decreasing in the interval ?​

Answer 1

Answer:

f(x) = 3/x +7

Step-by-step explanation:

By differentiating,

f'(x)= -3/x^2

If x=0 , f(x) is undefined⇒ x decreases on the interval  (-∞,∞) - {0}