Texas Instruments TI-83 PLUS - Manual (Page 419)

TI-83 Plus Inferential Statistics and Distributions 416
The regression equation is automatically stored to RegEQ (
VARS Statistics
EQ
secondary menu). If you enter a Y= variable name at the RegEQ:
prompt, the calculated regression equation is automatically stored to the
specified
Y= equation. In the example below, the regression equation is
stored to Y 1
, which is then selected (turned on).
In the example:
L 3 ={ 38 56 59 6474}
L 4 ={ 41 63 70 7284}
Input:
,
Calculated results: