User Manual

TI-83 Plus Function Graphing 119
Shading Above and Below
When you select
é
or
ê
for two or more functions, the TI-83 Plus rotates
through four shading patterns.
•
Vertical lines shade the first function with a
é
or
ê
graph style.
•
Horizontal lines shade the second.
•
Negatively sloping diagonal lines shade the third.
•
Positively sloping diagonal lines shade the fourth.
•
The rotation returns to vertical lines for the fifth
é
or
ê
function,
repeating the order described above.
When shaded areas intersect, the patterns overlap.
Note: When
é
or
ê
is selected for a Y= function that graphs a family of curves,
such as
Y1={1,2,3}X
, the four shading patterns rotate for each member of the
family of curves.