Practice Problems Lesson 1 & 2

Front

Does the sign need to flip when solving inequalities?

Back

Yes, the sign flips when multiplying or dividing by a negative number.

Front

What is the solution to the inequality -2(x+2) < 14?

Back

x > -9

Front

Which inequality symbol represents an open circle on a number line?

Back

<

Front

What is the solution to the inequality X - 20 > -30?

Back

X > -10

Front

What is the solution to the inequality 5z - 2 - 2z < 13?

Back

z < 5

Front

What does an open circle on a number line indicate?

Back

It indicates that the number is not included in the solution set.

Front

What does a closed circle on a number line indicate?

Back

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

Front

When solving inequalities, what happens to the inequality sign when both sides are multiplied by a negative number?

Back

The inequality sign flips.

Front

What is the first step in solving the inequality 3x + 5 < 20?

Back

Subtract 5 from both sides to isolate the term with x.

Front

What is the solution to the inequality 4x - 8 ≥ 0?

Back

x ≥ 2