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.
This means that the slope of the function is constant, and thus the graph is a line. The equation of a line, in function notation, is given by #y=ax+b#, for some #a# and #b \in \mathbb{R}#. KillerBunny Â· 1 Â· 2 comments Â· Feb 1 2015.