example 5 use the result of example 3 to find the average rate of change of from 3 to 0 the average rate of change of from 3 to 0 is a 0 3 3 1 a difference quotient can also be used to define a function that allows us to determine the average rate of change
If you stop smoking at this point, the lungs are not damaged any further, though the damage that has already been done cannot be reversed. So, giving up smoking would be the first step towards controlling the progression of lung damage. Allergies too can affect the lungs and decrease its function.
These allergies can mimic the symptoms of a cold. Respiratory symptoms of allergies and can also occur in combination with allergic symptoms of the skin. These include rashes, pruritus (itching), swelling and hives. Allergies are also associated with some skin conditions, such as eczema and contact dermatitis.