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Home > CC1 > Chapter 8 > Lesson 8.1.3 > Problem 8-43


Solve and graph the following inequalities: Homework Help ✎

  • Solve the inequalities like an equation. Substitute the inequality symbol with an equal sign.

  • Isolate the x by adding nine to each side.

  • Choose two numbers, one less than  and one greater than . (Example: 3 and 45) Substitute these numbers for x to decide which direction the arrow should point.

    Since is less than , we know that the arrow must point to the left. Every number to the left of on a number scale is less than .

  • Use the same method from part (a).

  • Solve using the same method from part (a).