The Picture at the End
Part of the Inequalities & Absolute Value section of Coddy's Algebra journey. Lesson 61 of 61.
A solution is finished when you can draw it on the number line. Take . It solves to or . The picture is two rays pointing away from each other, with open dots at -2 and 2. An "and" gives one segment. An "or" gives two rays. A single inequality gives one ray.
Draw the solution on the number line. Use a filled dot when the endpoint is included and an open dot when it is not. Shade every value that makes the inequality true.
Challenge
HardSolve and show the solutions on the number line.
Start the lesson to read it in the interactive player and track your progress.
All lessons in Inequalities & Absolute Value
1What an Inequality Is
The Four SignsA Picture on a LineReading It BackwardsRecap: What an Inequality Is4Two-Step Inequalities
Two StepsSubtract, Then FlipWith a FractionA Bracket on the WayRecap: Two-Step Inequalities5Variables on Both Sides
x on Both SidesGather Toward the LargerBrackets FirstAlways True, Never TrueRecap: Variables on Both Sides11From Words to Inequalities
At Least, At MostMore ThanA Budget That ShrinksTwo LimitsRecap: From Words3Multiplying and Dividing
Divide by a PositiveMultiply by a PositiveThe FlipDividing by a NegativeNegative FractionsRecap: Multiply and Divide6Graphing Solutions
From Inequality to PictureIs the Endpoint In?A Flip on the LineRecap: Graphing Solutions9Absolute Value Equations
Distance from ZeroThe Equation |x| = 3Distance from a PointIsolate the Bars FirstA Coefficient InsideNo Solution, One SolutionRecap: Absolute Equations12Final Challenges
Brackets and a FlipA Chain with a FlipA Wide Absolute ValueOutside, with a FractionThe Picture at the End