The formula in C2:D2 is![]()
----------B----------- ---C--- ---D--- --E--- --F--- --G--- --H--- --I--- 2 0.59786 1.79524 3 4 Time 1 2.5 4 4.75 7.2 7.9 8.5 5 Value 2 5 4 3 7 4 9 6 Linear Trendline Value 2.3931 3.2899 4.1867 4.6351 6.0998 6.5183 6.8771
=LINEST(C5:I5, C4:I4)
It MUST be confirmed with Ctrl+Shift+Enter.
In C6 and copied across,
=$C$2*C4 + $D$2
See Help for LINEST.
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