Answer: the y-coordinate of is -6.
Explanation:
A translation of T(-3, -8)^(x, y) follows the rule:
(x, y)=>(x-3, y-8).
From the diagram you can see that point B has coordinates (1,2). According to the previous rule this point will transform in point B' wit hcoordinates (-2,-6), because
(1, 2)=>(1-3, 2-8)=(-2, -6).
Hence, the y-coordinate of is -6.