We first need to review the symbols for inequalities: There are endless solutions for inequalities. In light of this fact, it may be easiest to find a solution set for inequalities by solving the system graphically.

Once again we find ourselves dividing both sides by a negative value, as shown in line 6. Once we do that, we need to remember to change the inequality.

Note that we still keep the equal part of it. This time we have a closed interval since we are including where it is equal to 4. Since there is no lower endpoint it is ALL values less than or equal to 4we put the negative infinity symbol on the left side.

The boxed end on 4 indicates a closed interval. Negative infinity always has a curved end because there is not an endpoint on that side. Since we needed to indicate all values less than or equal to 4, the part of the number line that was to the left of 4 was darkened. Practice Problems These are practice problems to help bring you to the next level.

It will allow you to check and see if you have an understanding of these types of problems. Math works just like anything else, if you want to get good at it, then you need to practice it.

Even the best athletes and musicians had help along the way and lots of practice, practice, practice, to get good at their sport or instrument. In fact there is no such thing as too much practice.

At the link you will find the answer as well as any steps that went into finding that answer. Practice Problems 1a - 1c: Solve, write your answer in interval notation and graph the solution set.- This video demonstrates how to write an inequality solution in interval INTERVAL NOTATION WORKSHEET Weebly - Unit 1 day 4 Interval Notation Put in interval notation and draw a graph of each inequality 1 2 x lt 6 0 2 3 x â‰¤ 2 Algebra II 17 Unit 2 November 9th, - 17 Unit 2 Algebra II Unit 2 6 Attend to.

The students will first need to set up the equation, in this example it would be “50x each plate of food.

Have the students solve the inequality to learn how much can be spent per plate, in this case x. Students are asked to write absolute value inequalities to represent the relationship among values described in word problems.

The student correctly writes and solves the first inequality: |x • Writing Absolute Value Inequalities worksheet. SOURCE AND ACCESS INFORMATION. Use the addition, subtraction, multiplication, and division properties of inequalities to solve linear inequalities.

Write the answer to an inequality using interval notation. Draw a graph to give a visual answer to an inequality problem. The first three problems are simply to allow the students to see how an expression on one side of an inequality symbol can be compared to a quantity on the other side of that same inequality symbol.

The rest of the problems are for the purpose of determining if a given quantity makes an inequality true. Worksheet 5 () Warm-up 4. Set up and write an algebraic equation, then solve: a) For disjunctions, solve each inequality separately in the compound sentence.

The solution set is the union of these solutions. Worksheet 11 () Graph: Problem - Solve and write solution in interval notation: 1.

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Graphing systems of inequalities Worksheets