Variable Expressions

Front

What is a variable expression?

Back

A variable expression is a mathematical phrase that can contain numbers, variables (like x or y), and operations (like addition or multiplication). It represents a value that can change.

Front

What does it mean to take a number away from a variable?

Back

Taking a number away from a variable means to subtract that number from the variable. For example, taking 3 away from z is written as z - 3.

Front

How do you express '8 divided by c' in mathematical terms?

Back

Front

What is the product of two numbers?

Back

The product of two numbers is the result of multiplying them together. For example, the product of 8 and f is written as 8f.

Front

How do you express the sum of two variables?

Back

The sum of two variables is expressed by adding them together. For example, the sum of 8 and f is written as 8 + f.

Front

What does 'the quotient of m and 8' mean?

Back

Front

What is a coefficient in a variable expression?

Back

A coefficient is a number that is multiplied by a variable. For example, in the expression 5x, 5 is the coefficient of x.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value that does not change.

Front

How do you write an expression for '3 times a variable x'?

Back

You write it as 3x.

Front

What does it mean to evaluate a variable expression?

Back

To evaluate a variable expression means to substitute the variable with a specific number and perform the operations to find the value.