Use matlab/Octave to solve the following:

The sales figures for a business are as follows for the first six months of the year: R40 000, R44 000, R52 000, R64 000, R80 000, R84 000. The owner believes that the sales curve can be approximated by a quadratic function. Find the best quadratic fit to the data, and use it to estimate the projected sales for the rest of the year. The sales figures for a business are as follows for the first six months of the year: R40 000, R44 000, R52 000, R64 000, R80 000, R84 000. The owner believes that the sales curve can be approximated by a quadratic function. Find the best quadratic fit to the data, and use it to estimate the projected sales for the rest of the year