Objective Translate verbal sentences into equations and inequalities.

Mid-Chapter 1 Review Section 1.1- Evaluate Expressions when x is equal to 5. Section 1.2- Order of Operations Evaluate the expression. Section 1.3- Write Expressions The sum of twice a number d and seven.

Section 1.4, “Write Equations and Inequalities” mathematical sentence formed by placing an “=“ between two expressions 13 * 22 = 14 - z 5 ÷ x = 30 y² – 8 = 12 11 x 11 = 121

INEQUALITY – 13 * 22 ≥ 14 - z 5 ÷ x > 30 y² – 8 < 12 mathematical sentence formed by placing a <, ≤, >, or ≥ between two expressions. 13 * 22 ≥ 14 - z 5 ÷ x > 30 y² – 8 < 12 11 - a ≤ 121

Writing Equations and Inequalities Symbol Meaning Key phrases = Is equal to The same as < Is less than Fewer than ≤ Is less than or equal to At most, no more than > Is great than More than ≥ Is greater than or equal to At least, no less than

Translate verbal phrases into equations or inequalities Inequality Verbal Phrase a. the difference of twice a number k and 8 is 12. 2k – 8 = 12 6n ≥ 24 b. the product of 6 and a number n is at least 24. 5 ≤ y ≤ 13 c. a number y is no less than 5 and no more than 13.

SOLUTION– 2k – 8 = 12 2(10) – 8 = 12 6n ≥ 24 6(10) ≥ 24 11 ≤ y ≤ 13 when you substitute for a variable the solution can be either TRUE or FALSE. Substitute 10 for each variable. Is 10 the solution for each equation/inequality? 2k – 8 = 12 2(10) – 8 = 12 SOLUTION 6n ≥ 24 6(10) ≥ 24 SOLUTION 11 ≤ y ≤ 13 11 ≤ (10) ≤ 13 NOT A SOLUTION

DO NOW Pg. 25 problems 39-44 You have 15 minutes to complete this assignment!