Box With Lid; Defining A Function - Texas Instruments TI-84 Plus Manual Book

Box with Lid

Box with Lid Box with Lid Box with Lid

Defining a Function

Defining a Function
Defining a Function Defining a Function
Take a 20 cm × 25 cm. sheet of paper and cut X × X squares from two corners. Cut
X × 12½ cm rectangles from the other two corners as shown in the diagram below. Fold
the paper into a box with a lid. What value of X would give your box the maximum
volume V? Use the table and graphs to determine the solution.
Begin by defining a function that describes
the volume of the box.
From the diagram:
2X + A = 20
2X + 2B = 25
V = A...B...X
1. Press o to display the
is where you define functions for tables
and graphing.
Chapter 17: Activities
20
editor, which
Y=
X
A
X B X B
25
466