The shaded region above is represented by
Equation of the line
y−4x−0=0−41−0\frac{y-4}{x-0} = \frac{0-4}{1-0}x−0y−4=1−00−4
y−4x=−41\frac{y-4}{x} = \frac{-4}{1}xy−4=1−4
∴−4x=y−4\therefore -4x = y - 4∴−4x=y−4
y=−4x+4y = -4x + 4y=−4x+4
∴The shaded portion = y≤−4x+4\therefore \text{The shaded portion = } y \le -4x + 4∴The shaded portion = y≤−4x+4
