The image of the line x + y – 2 = 0 in the y- axis is

Given line $x+y-2=0\Rightarrow x+y=2--\left(1\right)\Rightarrow \frac{x}{2}+\frac{y}{2}=1$

The Image of (1) w.r.to y-axis meets x- axis at (-2, 0) and y- axis at (0, 2)

Equation of line $\frac{x}{-2}+\frac{y}{2}=1\Rightarrow x-y+2=0$