Algebra 7-1  Rate of change

 

 

Year

Number of Students

in SCDS Middle School

1997

232

1998

238

1999

246

2000

250

2001

248

2002

248

 

1.  What was the rate of change from

 

            a.)  1997 to 1998  __________________

 

            b.)  1998 to 2002 __________________

 

            c.)  2001 to 2002 __________________

 

            d.)  2000 to 2002 __________________

 

2.  In what one year period was the rate of change most dramatic? _________________

 

 

Dow Jones Value over one week period

Monday

9320

Tuesday

9540

Wednesday

9500

Thursday

9448

Friday

9600

 

3.  Consider the value of the Dow Jones Industrial average over a one week period.

 

            a.)  What was the rate of change from Monday to Tuesday? _____________

 

            b.)  What was the rate of change from Tuesday to Thursday? ______________

 

            c.)  What was the rate of change from Monday to Friday? ___________

 

            d.)  What one day period did the rate of change decrease the most? ____________

 

            e.)  What one day period did the rate of change increase the most? ____________

 

4.         When born I was 40 cm tall.  On my first birthday, I was 75 cm tall.  Assuming that there are 365 days in a year, what was my average rate of change per day?  What was my average rate of change per month?