In the linear equation y = 7x + 19, "m" represents the coefficient of the x-term, which is the slope of the line, and "b" represents the y-intercept.
In this equation, the coefficient of x is 7, so m = 7. This means that for every unit increase in x, y will increase by 7 units.
The y-intercept is the value of y when x is 0. In this case, the y-intercept is 19, so b = 19. Therefore, the equation y = 7x + 19 has a slope (m) of 7 and a y-intercept (b) of 19.