8th Grade · Functions
Decreasing
8.F.B.5
Definition
Describes a portion of a graph where the output falls as the input increases, reading from left to right. A negative slope indicates a decreasing line.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- As x goes right, y goes down.
- Negative slope means decreasing.
Key rule
A decreasing function's graph falls as you read left to right.
Memory hook
Line goes down to the right.