As a preservatives, Glacial Acetic Acid can be used in a wide variety of industries including: food production, beverage, pharmaceutical, agriculture/animal feed, and various other industries.
The difference quotient is a measure of the average rate of change of the function over an interval (in this case, an interval of length h). The limit of the difference quotient (i.e., the derivative) is thus the instantaneous rate of change.
1 Compute the difference quotient. 2  Calculate the slope using the formula, m = $\lim_{h \to 0}$ $\frac{f(t + h) - f(t)}{h}$.  If the limit exists find the tangent line using the slope point formula. If the limit does not exist the tangent is given by the vertical line x = x0.