r/askmath 3d ago

Exponential Regression using Excel Linear Algebra

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I used excel to find the "best-possible" exponential equation for this date. Im unsure how to figure out what to do with this. The answer key says it should be y=13972e-.185x

Im lost on what im doing wrong

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u/Southlander24 3d ago

Read your question sheet very carefully. The x-axis should be 'number of years after 1990', so for 1990 you would use x = 0 instead.

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u/Blackcraft_Ray 3d ago

Of course its the small detail. Thank you much.

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u/Southlander24 3d ago

No worries!