Question

The function f (x)= ax+ b is strictly x€r iff
1 a= 0
2 b<0
3 a>0
(C) none of these​

Answer 1

Answer:

Prove that f (x) = ax + b, where a and b are constants and a > 0 is an strictly increasing function for all real values of x. without using the derivative. ⇒ f is a strictly increasing function in R. The radius of a circle is increasing uniformly at the rate of 3 cm per second.