To solve and graph an inequality, you test numbers to see which make it true, then place them on a number line — that runs on substituting to check and number line basics. Warm up both and this lesson clicks.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 To tell which number is bigger or smaller.
Example: Compare 5 and 3: 5 is bigger than 3.
Level 1 A straight line with numbers placed in order.
Example: Numbers get bigger to the right on the line.
Level 1 Telling if a math sentence is correct or not.
Example: 7 > 2 is true; 3 < 1 is false.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. Does x = 5 make x > 3 true?
2. Which number is a solution of n < 4?
3. Numbers get bigger as you move which way on a number line?
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 7-6 →