Without using the derivative show that the function f(x) = 7x - 3 is strictly increasing function on R.
Given,
f(x) = 7x – 3
Lets 
, 
R and 
⇒ 7
> 7
⇒ 7
> 7
⇒ 
f(x) is strictly increasing on R.
9
Without using the derivative show that the function f(x) = 7x - 3 is strictly increasing function on R.
Given,
f(x) = 7x – 3
Lets , R and
⇒ 7> 7
⇒ 7> 7
⇒
f(x) is strictly increasing on R.