(Solved): Step 1. Plot The Equality First (i.e., An Equation Without < Or > Sign). Example: Step 2. Choose A T...
Step 1. Plot the equality first (i.e., an equation without < or > sign).
Step 2. Choose a trial point so that a correct area (region) can be identified. The
most popular trial point is (0, 0).
Step 3. Using the trial point, evaluate the left-hand side (LHS) expression and
determine if the trial point satisfies the inequality. If the trial
satisfies the inequality, then the area which includes the trial point is the
right (correct) area.