Chapter 3 Part 1 Review

Front

What inequality does the number line graph represent if it includes all numbers greater than or equal to -5?

Back

x ≥ -5

Front

When graphing inequalities, what symbols indicate the use of a closed circle?

Back

≤, ≥

Front

Define the variable in the context of Sylvia's savings goal problem.

Back

Let x represent the possible number of weeks to reach her goal.

Front

What is the purpose of using a closed circle on a number line when graphing inequalities?

Back

It indicates that the endpoint is included in the solution set.

Front

What does the inequality x < 3 represent on a number line?

Back

All numbers less than 3.

Front

In the context of Lea's headphones problem, define the variable.

Back

Let x represent the possible number of cars she needs to wash.

Front

How do you determine the number of weeks Sylvia needs to save to reach her goal of $204?

Back

Set up the inequality 60 + 5x ≥ 204 and solve for x.

Front

What is the first step in solving an inequality?

Back

Isolate the variable on one side of the inequality.

Front

What does the inequality x > 10 represent on a number line?

Back

All numbers greater than 10.

Front

What is the significance of the inequality symbol in a mathematical expression?

Back

It indicates the relationship between two expressions, showing whether one is greater than, less than, or equal to the other.