Interpolator

Linear Interpolation allows you to quickly interpolate two given data points to find any corresponding x and y values.

To determine the y value of an interpolated point 'x', use the first option after entering your data points.

To determine the x value of an interpolated point 'y', use the second option after entering your data points.

There's no need to switch been interpolation and extrapolation, entering any required x/y value will receive the correct answer!