SITE-A teams: Lesson 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.

Turn on the CASIO fx7400G.

Ac_on.gif (1767 bytes)

Use your cursor arrows to highlight the TABLE menu and press exe.gif (1747 bytes) or just press 5.gif (1696 bytes) when at the main menu screen.

On an available Y-slot enter the expression 2x (100) and press exe.gif (1747 bytes)

(Make sure no other Y-slot is highlighted, i.e. selected for computation.).

Press f3.gif (1726 bytes) (RANG)

Scroll down and set the parameters as follows:

Press exe.gif (1747 bytes) after entering each value.

Table Range

X

Strt:             0

End:             10

ptch:           1

Press quit.gif (1764 bytes)

Press f4.gif (1732 bytes) (TABL)

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

Press quit.gif (1764 bytes)

Press menu.gif (1772 bytes)

Turn off the CASIO fx7400G.

shiftac.gif (1924 bytes) (OFF)