Model Problem The shows the average temperature (°F) for five months in a certain city. Find the rate of change for each time period. During which time period did the temperature increase at the fastest rate? Independent Variable (x) ______________________ Dependent Variable (y)_________________ From month 2 to month 3 From month 3 to month 5 From month 5 to month 7 From month 7 to month 8 Because this is a rate of change, we express the final answer as a or as a statement using the fraction word Always reduce the fractions. “per.” When subtracting, make sure you the number first before the number. “to” “from” Exercise A The table shows the balance of a bank account on different days of the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate? Independent Variable ___________________ Dependent Variable __________________ From day 1 to day 6 _________________________________ = ________________ From day 6 to day 16 ________________________________ = ________________ From day ____ to day ____ ______________________________ = ________________ From day ____ to day ____ ______________________________ = ________________ Determining Rate of Change from a When looking at a we can use the following formula for the average rate of change:
Model Problem The shows the average temperature (°F) for five months in a certain city. Find the rate of change for each time period. During which time period did the temperature increase at the fastest rate? Independent Variable (x) ______________________ Dependent Variable (y)_________________ From month 2 to month 3 From month 3 to month 5 From month 5 to month 7 From month 7 to month 8 Because this is a rate of change, we express the final answer as a fraction or as a statement using the word “per.” Always reduce the fractions. When subtracting, make sure you the “to” number first before the “from” number. Exercise A The table shows the balance of a bank account on different days of the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate? Independent Variable ___________________ Dependent Variable __________________ From day 1 to day 6 _________________________________ = ________________ From day 6 to day 16 ________________________________ = ________________ From day ____ to day ____ ______________________________ = ________________ From day ____ to day ____ ______________________________ = ________________ Determining Rate of Change from a When looking at a we can use the following formula for the average rate of change:
Chapter%206%20-%20Linear%20Functions%202015.docx