What is the slope-intercept form of the function that contains the point (3, 4) and has a slope of 2?

The slope - intercept form of the equation of a line can be generally expressed as,
                                        y = mx + b
The equation of the line can be obtained by,
                                      y - y1 = m(x - x1)
Substituting the known values,
                                       y - 4 = 2(x - 3) 
Simplifying,
                                   y = 2x - 2