Open Middle®
Directions: What’s the solution that has the least / greatest value to the inequality 4x > 12?
Hint
How can we tell if a number is a solution to an inequality?
How can we tell if a number is NOT a solution to an inequality?
How can we tell if a number is NOT a solution to an inequality?
Answer
4x > 12
Least value: A value just a little bigger than 3.
Greatest value: Infinity
Least value: A value just a little bigger than 3.
Greatest value: Infinity
4x ≥ 12
Least value: 3
Greatest value: Infinity
Source: Robert Kaplinsky