Question

Match the following with suitable nomenclatures.

• A. Constant
• B. Variable
• C. Expression
• D. Equation

Answer 1

A symbol which takes on various numerical values is called a variable. For example: x, y etc.

A symbol having a fixed numerical values is called a constant. For example: 2, -3 etc.

Numbers, variables and operators (such as + and x), grouped together is known as an expression. So, 2x - 3 is an algebraic expression.

An expression having equality symbol is called equation.
For example: 5x + 6 = 11