In mathematics, the term linear function refers to two distinct but related notions:1
In calculus and related areas, a linear function is a function whose graph is a straight line, that is, a polynomial function of degree zero or one. For distinguishing such a linear function from the other concept, the term affine function is often used.
In linear algebra, mathematical analysis, and functional analysis, a linear function is a linear map.
Which context ("notion") of the two contexts of the linear function concept should be taught first?
Which one typically contain more basic math?
The Calculus context or the linear algebra context?