Answer: The side containing the origin.
- A The side away from the origin
- B The side containing the origin
- C Both sides equally
- D Neither side
Correct answer: B. The side containing the origin
Explanation: Since the test point (0,0) satisfies the inequality (0 <= 12), the half-plane containing the origin is shaded.
One-variable inequalities use open (excluded) or closed (included) circles on a number line; two-variable inequalities use a dashed (strict) or solid (non-strict) boundary line, with the solution being the entire shaded half-plane on one side of it.
Concept context
Solving linear inequalities in one and two variables algebraically and graphically, and representing solutions on a number line or as a region in a plane.