2. a style of dance music marked by some of the features of jazz.
The graph of y = 2x+1 is a straight line. 1  When x increases, y increases twice as fast, hence 2x. 2  When x is 0, y is already 1.  So: y = 2x + 1.
Definition of Linear Equation. Linear equation is an equation of the form Ax + By = C, where A â  0 and B â  0. The graph of a linear equation is a straight line.inear equation is an equation of the form Ax + By = C, where A â  0 and B â  0.