Texas Instruments TI-80 Manual Book page 131

Store the regression equation into the Y= list and graph it.
mode, press ( to display the
15. In
FUNC
Press M to clear
other functions, if necessary.
16. Press L to display the
17. Press 2 to select
display the VARS EQ
18. Press 5 to select
regression to the
Note: Each time you calculate a regression, the
regression equation (
19. Press ,. The data points are plotted (›), and
then the regression line is drawn.
20. Press + and then ~ to trace the points in
PLOT1 , as indicated by
of the display.
Press † to move to
function.
Y1 , if necessary. Turn off all
VARS menu.
, and press 9 9 to
STATISTICS...
menu.
REGEQ , which copies the linear
Y= editor screen.
) is updated.
REGEQ
P1 in the upper right corner
Y1 , and continue tracing the
editor.
Y=
Statistics 9-5