20/20: Consensus Definition of Counseling. The delegates met at the ACA Conference in Pittsburgh in March 2010 and agreed on a unified definition of counseling. Counseling is a professional relationship that empowers diverse individuals, families, and groups to accomplish mental health, wellness, education, and career goals. The delegates made it clear that the definition was a basic framework and that each participating organization is welcome to add a statement that fleshes out the particular specialty or area of focus.
Linear equation. Graph sample of linear equations. A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable (however, different variables may occur in different terms).
Linear function. In mathematics, the term linear function refers to two distinct but related notions: In calculus and related areas, a linear function is a polynomial function of degree zero or one, or is the zero polynomial. In linear algebra and functional analysis, a linear function is a linear map.