Holt Algebra Graphing and Writing Inequalities Warm Up Compare. Write, or =. 1. − < > > = Tell whether the inequality x < 5 is true or false for the following values of x. 5. x = –10 T 6. x = 5 F 7. x = 4.99 T 8. x = T

Holt Algebra Graphing and Writing Inequalities Variables on Both Sides: 4b + 2 = 3b 7n – 2 = 5n + 6

Holt Algebra Graphing and Writing Inequalities Students will be able to: Identify solutions of inequalities with one variable and write & graph inequalities with one variable. Learning Target

Holt Algebra Graphing and Writing Inequalities An inequality is a statement that two quantities are not equal. The quantities are compared by using the following signs: ≤ A ≤ B A is less than or equal to B. < A < BA < B A is less than B. > A > B A is greater than B. ≥ A ≥ B A is greater than or equal to B. ≠ A ≠ B A is not equal to B. A solution of an inequality is any value that makes the inequality true. A is less than B A is greater than B A is less than or equal to B A is greater than or equal to B A is not equal to B

Holt Algebra Graphing and Writing Inequalities x – 6 ≥ 4 2p > 8 – 4 – – 6 – 8 – 4 – – 6 – 8

Holt Algebra Graphing and Writing Inequalities t < 5(–1 + 3) – 4 – – 6 – – 4 ≥ w – 4 – – 6 – 8

Holt Algebra Graphing and Writing Inequalities Write the inequality shown by each graph.

Holt Algebra Graphing and Writing Inequalities Reading Math “No more than” means “less than or equal to.” “At least” means “greater than or equal to”.

Holt Algebra Graphing and Writing Inequalities A store’s employees earn at least $8.50 per hour. Define a variable and write an inequality for the amount the employees may earn per hour. Graph the solutions − HW pp /18-45