Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes numbers, variables, and operations (like addition, subtraction, multiplication, and division).

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an algebraic expression. For example, in 3x, 3 is the coefficient.

Front

What is a variable in algebra?

Back

A variable is a symbol (usually a letter) that represents an unknown value in an expression or equation.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with given numbers.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.

Front

How do you represent 'the sum of seven and x' in algebraic form?

Back

The sum of seven and x is represented as 7 + x.

Front

How do you represent 'twenty decreased by x' in algebraic form?

Back

Twenty decreased by x is represented as 20 - x.

Front

What is the product of two numbers?

Back

The product of two numbers is the result of multiplying them together.

Front

How do you represent 'the product of 3 and x increased by 5' in algebraic form?

Back

The product of 3 and x increased by 5 is represented as 3x + 5.

Front

What is the value of the expression r/t when r = 8 and t = 2?

Back

The value of the expression r/t when r = 8 and t = 2 is 4.