Casio fx-991EX Quick Start Manual page 39

TABLE
Press p to view the table.
Based on the information from the table, it appears f(x) goes to
negative infinity to the left and g(x) goes to positive infinity to the
left.
There appears to be roots of 1 and 2 for both functions.
To determine the behavior between roots, type in a number
between 1 and 2, like 1.5.
The right end behavior for both functions appears to be
increasing towards positive infinity.
fx-991EX Quick Start Guide 39