Question

The function f (x) = 2 – 3 x is ____________.

Options

• increasing

• neither decreasing nor increasing

• strictly decreasing

• none of these

Answer 1

The function f (x) = 2 – 3 x is strictly decreasing.

Explanation:

f (x) = 2 – 3x ⇒ f ' (x) = - 3 < 0 for all x ∈ R. So, f is strictly decreasing function.