Casio FX-9750G PLUS User's Manual & Technical Reference page 201

Swap the screens so the graph is on the inactive (right) screen.
K2(SWAP)
Select the function for the graph that you want in the now-empty active (left)
screen.
A1(SEL)
Draw the graph.
6(DRAW)
• At this point, you could perform a copy operation and superimpose the active
graph over the inactive graph.
K1(COPY)
• Pressing !6 (G ↔ T) lets you switch between display of the active and
inactive graphs, using the entire display for each.
!6(G ↔ T)
!6(G ↔ T)
!6(G ↔ T)
Displaying a Graph in the Inactive Screen
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