Treat the inequality like any other equation.

Subtract 1 from all parts:

And remember that when you divide or multiply by a negative number, the sign flips around.

Try finish this.

Sorry, the functions are not appearing.2)

Given two functions as:

f(x) = and g(x) =

Find fog(x) also find the domain of f, g and fog

Anyway, if f(x) = x + 1 and g(x) = 3x - 1, then

fog(x) = f(3x -1) = (3x - 1) + 1 = 3x

From there, you should have an idea of the shapes of all the three functions, and give their domain.