A constant is a value that does not change. In the expression 4x plus 9, the 9 is the constant, because it stays the same no matter what x is.
Math Dictionary / Constant
Constant
A constant is a fixed value that does not change.
AlgebraGrade 6Grade 7Grade 8Algebra 1GEDSATACT
What it means
In an expression, a constant is a number without a variable.
Also called: fixed number
Examples
| In x + 8, the constant is 8 |
| In 4a – 3, the constant is -3 |
| Pi is a mathematical constant |
Common mistake
A coefficient is attached to a variable; a constant stands by itself.
Try one
Question: What is the constant in 2x + 11?
Show answer
11.