1. Objective
Translate verbal sentences into equations and inequalities.

2. 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.

3. 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

4. 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

5. 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

6. 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.

7. 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

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