When two variables move in the same direction, the curve relating them is downward sloping, and we say the variables are negatively related.

Downward Sloping

Describes a line on a graph that shows a decrease in one variable as another variable increases, often used to illustrate laws of demand in economics.

Negatively Related

A term used to describe two variables that move in opposite directions; as one increases, the other decreases.

Same Direction

A term indicating that two or more variables move in tandem, either increasing or decreasing together.