Question

In the algebraic expression $x+2$, variable and constant are ________.

• A. $x$, 2
• B. $x$, 1
• C. 1+$x$, 1
• D. 0, $x$

Answer 1

The correct option is A $x$, 2

In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number.

A Variable is a symbol for a number we don't know yet.

Symbols and letters which are expressed in a mathematical expression are variables like a,b,c,d,p,q,r,s,x,y ...etc

In the above expression, constant is 2 as it is a number.
and variable is $x$ as it is a letter.