The Explorer Apps; Linear Explorer App - HP 39gII User Manual

The Explorer Apps

Linear Explorer App

Open the app
Graph mode
Equation mode
The Explorer Apps
The Linear Explorer app is used to investigate the
behavior of the graphs of
values of a and b change, both by manipulating the
graph and seeing the change in the equation, and by
manipulating the equation and seeing the change in the
graph.
I
Press , select Linear
Explorer, and press
The app opens in Graph
mode (note the dot in the
GRAPH menu label).
In Graph
= \
mode, and
the graph vertically,
effectively changing the y-
intercept of the line. For
vertical translations, press
(F3) to change the magnitude of the increment for
the translation. The
w +
as and
Press to change the sign of the slope.
-
The form of the linear function is shown at the top right of
the display, with the current equation that matches the
graph just below it. As you manipulate the graph of the
line, the equation updates in real time to reflect the
changes. Press
variation and slope-intercept forms of linear functions.
Press (F1) to toggle to
Equation mode. You will see
the dot in the EQ menu key
indicating the switch from
Graph mode. You will also
and
y = ax
.
translate
and keys (as well
< >
) increase and decrease the slope.
(F4) to switch between direct
14
as the
y = ax + b
147