CW Inequalities, Interval Notation, Translating to Symbol

Front

What is an inequality?

Back

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

Front

What does the symbol '≤' represent?

Back

The symbol '≤' means 'less than or equal to'. It indicates that one value can be less than or equal to another.

Front

What does the symbol '≥' represent?

Back

The symbol '≥' means 'greater than or equal to'. It indicates that one value can be greater than or equal to another.

Front

How do you express 'The maximum speed limit is 55 mph' in inequality form?

Back

s ≤ 55

Front

What does 'can not exceed' mean in terms of inequalities?

Back

'Can not exceed' means that a value is limited to being less than or equal to a certain number, represented by the symbol '≤'.

Front

When do we switch the inequality symbol?

Back

We switch the inequality symbol when multiplying or dividing both sides of the inequality by a negative number.

Front

How would you express 'The score must be at least 80 points' in inequality form?

Back

s ≥ 80

Front

What is interval notation?

Back

Interval notation is a way of writing subsets of the real number line using intervals, such as (a, b) or [a, b].

Front

What does the interval (3, 7) represent?

Back

The interval (3, 7) represents all numbers greater than 3 and less than 7, not including 3 and 7.

Front

What does the interval [2, 5] represent?

Back

The interval [2, 5] represents all numbers from 2 to 5, including both 2 and 5.