How do you linear interpolate in fx-570ES?

To perform linear interpolation on the fx-570ES, first, input the two known points (x1, y1) and (x2, y2) into the calculator. Use the formula for linear interpolation: ( y = y1 + \frac{(x - x1)(y2 - y1)}{(x2 - x1)} ), where ( x ) is the value for which you want to find ( y ). Enter the values into the calculator, ensuring to follow the order of operations, and compute to find the interpolated value.