The function f(x)=ax+b is strictly increasing for all real x is

The function f(x) = ax + b is strictly increasing for all real x if

The function f(x)=ax+b is strictly decreasing for all x epsilon R if

The function f(x)=ax+b , is strictly decreasing for all x in R iff :

The function f(x)=ax+b is strictly decreasing for all x epsilon R if: a) a=0 b) altb c) agt0 d)None of these

If the function f(x)=cos|-x|-2ax+b is strictly increasing for all R, then

Is the function f(x) = 5x - 4 strictly increasing on R ?

Determine for which values of 'x' the function f(x) = x^3 - 24x + 7 is strictly increasing or strictly decreasing.