5-9 Unit 5 Test Review

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols such as <, >, ≤, or ≥.

Front

What does the symbol '≤' mean?

Back

The symbol '≤' means 'less than or equal to'.

Front

What does the symbol '≥' mean?

Back

The symbol '≥' means 'greater than or equal to'.

Front

How do you solve the inequality 25x ≤ 100?

Back

To solve, divide both sides by 25: x ≤ 4.

Front

What is the solution to the equation -90 = -100 + x?

Back

The solution is x = 10.

Front

How do you determine if a number satisfies the inequality 26 > n + 15?

Back

Rearrange to find n: n < 11. Any number less than 11 satisfies the inequality.

Front

What is the solution set for the inequality 25x < 100?

Back

The solution set is x < 4.

Front

What does it mean if an inequality is graphed on a number line?

Back

It shows the range of values that satisfy the inequality.

Front

What is the difference between strict and non-strict inequalities?

Back

Strict inequalities (<, >) do not include the boundary, while non-strict inequalities (≤, ≥) do.

Front

How can you check if a value satisfies an inequality?

Back

Substitute the value into the inequality and see if the statement is true.