Topic 4 Math Review (Equations and Inequalities)

Front

What is a dependent variable?

Back

A dependent variable is a variable whose value depends on the value of another variable, often represented as 'y' in equations.

Front

What does the symbol '≤' represent in inequalities?

Back

'≤' means 'less than or equal to', indicating that a value can be either less than or equal to another value.

Front

How is 'less than' represented on a number line?

Back

'Less than' is represented by an empty circle on a number line.

Front

What does a filled-in circle on a number line indicate?

Back

A filled-in circle indicates that the value is included in the solution set, representing 'less than or equal to' or 'greater than or equal to'.

Front

Write the inequality that represents 'a must be at least 5'.

Back

Front

What is the reciprocal of a number?

Back

Front

Back

This equation represents a relationship where 4 times a variable 'c' equals 12. To find 'c', divide both sides by 4.

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Back

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Front

Back

This inequality means that 'a' can take any value less than 5.