If x equals 2.5 what will be the value of y?​

The value of "y" is unknown because there is no equation

Step-by-step explanation:

A)

The starting point ( -5.5,2) and it's reflecting about the line y=x

Then the finishing point is ( 2, -5.5)

B

The given point (-5.5,2) is a reflection about the y-axis then the co-ordinate changes to ( 5.5,2)

Step-by-step explanation:

A)

A reflection of a line y=x then the co-ordinate point changes to

(x,y)→ (y,x)

Given the starting point ( -5.5,2) and it's reflecting about the line y=x

Then the finishing point is ( 2, -5.5)

B)

The Reflection about y-axis then the co-ordinate point changes to

(x,y)→ (-x,y)

The given point (-5.5,2) is a reflection about the y-axis then the co-ordinate changes to ( 5.5,2)