Definition of dray. : a vehicle used to haul goods; especially : a strong cart or wagon without sides.
The main difference between an equation and a function is the fact that an equation usually deals with a single input, whereas, a function can have numerous inputs. In mathematics, an equation is used to denote the equality between two expressions.
Expressions and Equations. Terms. Algebraic Equation - An equation that contains one or more variables. Algebraic Expression - An expression that contains one or more variables. Coefficient - The number that is multiplied by the variable(s) in a single term. In the term 67rt , rt has a coefficient of 67.