© 2000, 2003 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
G
ETTING
S
TARTED WITH THE
CBL 2™ S
YSTEM
55
6.
It is generally known that 0
¡
C equals 32
¡
F and 100
¡
C equals 212
¡
F. Use this
information to derive the exact conversion formula.
Celsius (X)
Fahrenheit (Y)
X1=
Y1=
X2=
Y2=
A = ______________________
B = ______________________
Y = AX + B
Y = ______________________
7.
Press
o
. Enter the following equations:
Y
1
= Linear regression equation from question 2.
Y
2
= Calculated approximate formula from question 5.
Y
3
= The exact conversion formula from question 6.
Graph the functions one at a time and then simultaneously. Write about the
similarities and differences in the graphs. Explain why you do or do not see
differences in the graphs.