Absolute Value Inequalities Word Problems. Write an equation involving the absolute value for the graph Find the point that is the same distance from.

Slides:



Advertisements
Similar presentations
Solve absolute Value Inequalities Isolate the absolute value on one side of the equation. Write the problem as a compound inequality. LESS THAN: If absolute.
Advertisements

Name: Date: Period: Topic: Solving Absolute Value Equations & Inequalities Essential Question: What is the process needed to solve absolute value equations.
Recall that the absolute value of a number x, written |x|, is the distance from x to zero on the number line. Because absolute value represents distance.
Algebra 1 Chapter 3 Section 7.
3-7 Solving Absolute-Value Inequalities Warm Up Lesson Presentation
SAT Readiness. Simplifying Algebraic Expressions 1.4.
Solving Absolute Value Equations and Inequalities.
6.8 –Systems of Inequalities. Just like systems of equations, but do the inequality part!
CHAPTER 1 – EQUATIONS AND INEQUALITIES 1.6 – SOLVING COMPOUND AND ABSOLUTE VALUE INEQUALITIES Unit 1 – First-Degree Equations and Inequalities.
Representing proportional relationships with equations.
Test Review: Direct Variation. Rewrite the direct variation equation, y = kx, in terms of “k.” In other words, k = _________. Test Review: Direct Variation.
5.4 – Solving Compound Inequalities. Ex. Solve and graph the solution.
 .
Objectives Solve compound inequalities.
Solving Absolute Value Equations and Inequalities
You can solve some absolute-value equations using mental math. For instance, you learned that the equation | x |  8 has two solutions: 8 and  8. S OLVING.
Warm Up Solve. 1. y + 7 < – m ≥ – – 2x ≤ 17 y < –18 m ≥ –3 x ≥ –6 Use interval notation to indicate the graphed numbers (-2, 3] (-
A disjunction is a compound statement that uses the word or.
Lesson 5 Contents Glencoe McGraw-Hill Mathematics Algebra 2005 Example 1Solve an Absolute Value Equation Example 2Write an Absolute Value Equation.
3.6 Solving Absolute Value Equations and Inequalities
Lesson 5 MI/Vocab absolute value Solve absolute value equations. Solve absolute value inequalities.
5.3 – Solving Multi-Step Inequalities. *Just like solving equations*
3-7 Solving Absolute-Value Inequalities Warm Up Warm Up Lesson Presentation Lesson Presentation California Standards California StandardsPreview.
Ch. 1-5 Absolute Value Equations and Inequalities.
Solving Open Sentences Involving Absolute Value
SOLVE ABSOLUTE VALUE INEQUALITIES January 21, 2014 Pages
Unit 3- Lesson 5.6 Absolute Value Inequalities
Objectives Solve compound inequalities in one variable involving absolute-value expressions.
1.8 Absolute Value Equations and Inequalities Warm-up (IN) Learning Objective: to write, solve and graph absolute value in math and in real-life situations.
Chapter 1 Section 1.7. Yesterday’s Exit Slip -2 Objectives: O To solve compound inequalities using and and or. O To solve inequalities involving absolute.
Holt Algebra Solving Absolute-Value Equations and Inequalities Solve compound inequalities. Write and solve absolute-value equations and inequalities.
Splash Screen Contents Lesson 1-1Expressions and Formulas Lesson 1-2Properties of Real Numbers Lesson 1-3Solving Equations Lesson 1-4Solving Absolute.
Notes Over 1.7 Solving an Absolute Value Equation Solve the equation.
Then/Now You solved equations with the variable on each side. (Lesson 2–4) Evaluate absolute value expressions. Solve absolute value equations.
Algebra 2 Lesson 1-5 (Page 33) ALGEBRA 2 LESSON 1-5 Absolute Value Equations and Inequalities 1-1.
Holt McDougal Algebra Solving Absolute-Value Inequalities Solve compound inequalities in one variable involving absolute-value expressions. Objectives.
MEAN ABSOLUTE DEVIATION. Vocabulary  Deviation: The distance that two points are separated from each other.  Deviation from the mean : How far the data.
Over Lesson 2–4. Splash Screen Then/Now You solved equations with the variable on each side. Evaluate absolute value expressions. Solve absolute value.
Use graphing to solve. 1. x + y = 6 3x – 4y = 4 Use substitution to solve. 2. y= 2x – 4 x – 5y = 14 Use elimination to solve. 3. 2x – 5y = 1 3x – 4y =
Chapter 6 Solving and Graphing Linear Inequalities By Michelle Lagana.
Chapter 1 Review Evaluating Expressions Properties of Real Numbers Solving Equations Solving Inequalities.
Solving an Absolute-Value Inequality Recall that  x  is the distance between x and 0. If  x  8, then any number between  8 and 8 is a solution of.
Algebra 2 Lesson 1-6 Part 2 Absolute Value Inequalities.
Algebra 2 Chapter 1 Section 6 Objectives: 1.Solve compound inequalities 2.Solve absolute value inequalities Standards: A2.2.1c, A2.2.1d, and SMP 1,2,5,7,8.
11.|–4 | |–3 – 4 | 7 ALGEBRA 1 LESSON 10-5 (For help, go to Lessons 1-3 and 1-4.) Simplify. 1.|15|2.|–3|3.|18 – 12| 4.–|–7|5.|12 – (–12)|6.|–10.
Lesson 91 Warm Up Pg Algebra 1 Lesson 91 Solving Absolute-Value Inequalities.
Note #6 Standard: Solving Absolute-Value Equation and Inequalities Objective - To solve an equation involving absolute value.
3.6 Absolute Value Inequalities Hornick. Warm Up Solve each inequality and graph the solution. 1. x + 7 < x > 1 14x ≥ 28 x < –3 –5 –4 –3–2.
Section 5 Absolute Value Equations and Inequalities
Objectives: Graph (and write) inequalities on a number line.
Quiz Chapter 2 Ext. – Absolute Value
Students will be able to:
3.3 – Solving Systems of Inequalities by Graphing
Solving Absolute-Value Inequalities
Notes Over 2.1 Graph the numbers on a number line. Then write two inequalities that compare the two numbers and and 9 l l l.
2.4 & 2.5 Absolute Value Inequalities and Equations
Drill Write the compound inequality for the following graphs.
Solving Absolute Value Equations & Inequalities
Objectives Solve compound inequalities in one variable involving absolute-value expressions.
SOLVING ABSOLUTE-VALUE EQUATIONS
Algebra 1B – Name: _________________________
Absolute Value Inequalities
Solving absolute value equations visually
SOLVING ABSOLUTE-VALUE EQUATIONS
Statistics Mean Absolute Deviation.
SOLVING ABSOLUTE-VALUE EQUATIONS
Unit 3- Lesson 5.6 Absolute Value Inequalities
Review Sketch a graph of the inequality 0 < x < 5
Bell Ringer Instructions: find the
Statistics Mean Absolute Deviation.
Presentation transcript:

Absolute Value Inequalities Word Problems

Write an equation involving the absolute value for the graph Find the point that is the same distance from –4 as the distance from 6. The midpoint between –4 and 6 is 1. Ex 1

The distance from 1 to –4 is 5 units. The distance from 1 to 6 is 5 units. So, an equation is

#2 Ex. On your basketball team, the starting players’ scoring averages are between 6 and 10 points per game. Write an absolute-value inequality describing the scoring averages for the players. Step 1: Write as a compound inequality Step 2: Find the half way point and subtract from each part Half way between 6 and 10 is 8 Step 3: Re-write as an absolute value inequality The average number of points scored by the starting basketball players was 8 points per game and they varied by 2 points per game.

#3 Ex. Your car averages 32 miles per gallon in the city. The actual mileage varies from the average by at most 5 miles per gallon. A)Write an absolute-value inequality that shows the range for the mileage your car gets. B)Between what two numbers does the gas mileage range. The car ranges between 27 and 37 miles per gallon.