The exponential regression option finds the equation of an exponential equation of the form y = ab

The data shown here is the points {(2,11.4) (3,17) (5,27.3) (7,36.1) (11,47.7) (13,49.9)}

Press DREG to view the regression options.

For exponential regression, select option 09Rg_ab

Press and select one of the exponential regression options in the calculation screen. Now press followed by .

Therefore, the best-fit exponential equation for this data is approximately

which is equivalent to

The regression equation can be automatically stored in the equation editor by entering the name of the equation, such as y1, after (L1,L2 as follows: choose option A and select y1 followed by .