Linear growth is not really growth, in a financial sense, as growth is when the derivative (rate of change) is increasing/decreasing. Linear growth by how I int

Linear growth is not really growth, in a financial sense, as growth is when the derivative (rate of change) is increasing/decreasing. Linear growth by how I interpret it, would have a derivative of zero, i.e. the rate of change is constant, or geometrically speaking, a straight line.