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 Function. A function that can be graphically represented in the Cartesian coordinate plane by a straight line is called a Linear Function. A linear function is a first degree polynomial of the form, F(x) = m x + c, where m and c are constants and x is a real variable. The constant m is called slope and c is called y-intercept. Example of Linear Function. y = 3x + 5 is a linear function. The graph of the function y = 2x is shown below.