volume_mute
How to represent the unknown?
publish date: 2026/05/23 02:28:29.848674 UTC
In algebra, a letter such as x usually represents a (1).
Please drag and drop the selected option in the right place or type it instead
variable
constant
fraction
prime
Correct Answer
(1) variable
Explanation
Variables represent unknown or changing quantities.
Reference
Introduction to Differential Calculus (Systematic Studies with Engineering Applications for Beginners) - 2012