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.
It often affects people with food allergies. Food allergies are thought to affect 5-8% of children and 1-2% of adults. Very severe allergic reactions can cause swelling of the throat, which can cause breathing difficulties and a sudden fall in blood pressure. This type of extreme allergic reaction is known as anaphylaxis and is a medical emergency.