How To Congratulate The Arrival Of A New Baby How To I Make My Trend Line Go Through The Origin On Numbers On My Mac?

How to I make my trend line go through the origin on Numbers on my Mac? - how to congratulate the arrival of a new baby

For a physics lab, I have to make a computer graphic. The instructions are for Excel, but I use the numbers on a Mac, I thought everything, not just how to make the trend line through the origin. Anybody know any way without the addition of (0,0) for the data?