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Chapter 7: Day 7 (A Preview of Differential Calculus)
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Page 7.1: Finding Limits - Numerical and Graphical Approaches
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In this section, we will examine numerical and graphical approaches to identifying limits.
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Page 7.2: Finding Limits - Properties of Limits
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Graphing a function or exploring a table of values to determine a limit can be cumbersome and time-consuming. When possible, it is more efficient to use the properties of limits, which is a collection of theorems for finding limits. Knowing the properties of limits allows us to compute limits directly.
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Page 7.3: Continuity
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A function that remains level for an interval and then jumps instantaneously to a higher value is called a stepwise function. This function is an example. A function that has any hole or break in its graph is known as a discontinuous function. A stepwise function, such as parking-garage charges as a function of hours parked, is an example of a discontinuous function. We can check three different conditions to decide if a function is continuous at a particular number.
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Page 7.4: Derivatives
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Change divided by time is one example of a rate. The rates of change in the previous examples are each different. In other words, some changed faster than others. If we were to graph the functions, we could compare the rates by determining the slopes of the graphs.