linear function
nounUK /ˈlɪn.i.ə ˈfʌŋk.ʃən/
US /ˈlɪn.i.ɚ ˈfʌŋk.ʃən/
A linear function is a math rule that makes a straight line when you draw it.
The teacher showed us that y = 2x + 1 is a linear function.
RELATED WORDS
OTHER MEANINGS
2. A function whose graph is a straight line and whose rate of change is constant.
In algebra class, we learned that a linear function has a constant slope.
3. A mathematical mapping that preserves addition and scalar multiplication between vector spaces.
The transformation that doubles every vector is a linear function.
4. A simple relationship where one quantity changes at a steady rate compared with another.
The cost grows as a linear function of the number of tickets bought.