Foundations Unit 4 Final Review

Front

Does the inequality sign flip when multiplying or dividing by a negative number?

Back

Yes, the inequality sign flips.

Front

What are two solutions to the inequality x < 8?

Back

7 and 3.

Front

Which graph represents the inequality k < 3?

Back

Graph A.

Front

When graphing b ≤ 6, should you use an open or closed circle?

Back

Closed circle.

Front

What does the inequality 15 + 6x ≤ 100 represent in a real-world scenario?

Back

Lazer Zone charges $15 plus $6 per person. If Andrea has a maximum of $100 to spend, how many people can Andrea invite to play laser tag?

Front

What is the definition of an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is less than, greater than, less than or equal to, or greater than or equal to the other.

Front

What does the symbol '<' mean in an inequality?

Back

It means 'less than'.

Front

What does the symbol '≤' mean in an inequality?

Back

It means 'less than or equal to'.

Front

How do you solve the inequality 2x + 3 < 11?

Back

Subtract 3 from both sides to get 2x < 8, then divide by 2 to find x < 4.

Front

What is the solution set for the inequality x > 5?

Back

All numbers greater than 5.