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Lessons / Activities : Lessons for Calculators : Casio TEAMS Grant Algebra Lessons

Lessons 8

A certain culture of bacteria doubles every hour. This type of growth is commonly called exponential growth and it is quite rapid.

Can you develop a table that displays what the bacteria count is every hour given an initial bacteria count of 100 and allowing the growth to take place over the next 10 hours?

Let X represent the time (in hours) over which the bacteria is allowed to grow, and let Y be the bacterial count.

  1. Turn on the CASIO FX7400G.

  2. Use your cursor arrows to highlight the TABLE menu and press   or just press when at the main menu screen.
  3. On an available Y-slot enter the expression 2x (100) and press (Make sure no other Y-slot is highlighted, i.e. selected for computation.)

Press (RANG)

Scroll down and set the parameters as follows:

Press after entering each value.

Table Range:
X
Strt: 0
End: 10
ptch: 1

Press
Press (TABL)

Use your cursor arrows to move about the table that has been created.

Press
Press

Turn off the CASIO FX7400G.
(OFF)