ANSWER
[tex](4.75, - 1.75)[/tex]
EXPLANATION
A reflection across the y-axis has the mapping
[tex](x,y)\rightarrow (-x,y).[/tex]
The given point is,
[tex](-4.75,-1.75)[/tex]
When we reflect this point across the y-axis, its image will have coordinates,
[tex](4.75, - 1.75)[/tex]