Given graph has a figure and on that figure there's a point A with co-ordinate (1,2).
Refelection across y-axis :
The rule for reflection over the y-axis is
![(x,y)\rightarrow(-x,y)](https://img.qammunity.org/2023/formulas/mathematics/college/ikcitr9ov18gnuy0131ezdtc936qt485rg.png)
So, according to given graph point A (1,2) has reflection across y axis is (-1,2).
Hence, the required answer is (-1,2).