[tex]y=mx+b[/tex] is slope-intercept form, which is a way of writing an equation for a line.
In this equation, [tex]m[/tex] represents the slope and [tex]b[/tex] represents the y-intercept.
[tex]x[/tex] and [tex]y[/tex] are the coordinates of a point on the resulting line.
Here are some examples:
[tex]y=3x+2[/tex]
[tex]y=-2x-4[/tex]
[tex]y=8x-1[/tex]
[tex]y=-7x+5[/tex]