Question

The triangle STU shown on the coordinate grid below is reflected once to map onto triangle S'T'U'.

Triangle STU drawn on a 4 quadrant coordinate grid with vertices S is at 8, 6. T is at 2, 2. U is at 5, 1.

If vertex T' is at (2, -2), what are the coordinates of vertex S'?

(6, -8)

(-6, 8)

(8, -6)

(-8, 6)

Answer 1

S is (8,6) ; T is (2,2) ; U is (5,1)
T' is (2,-2)

What is S' ?

Compare T and T'. What changed going from T to T' ?
Do the same going from S to S'.

Answer 2

no

Answer 3

The y value changed sign going from T to T'
Do the same going from S to S' and you will get (8, -6)

Answer 4

ohh i got (-8,6)

Answer 5

If I see the diagram I will be able to answer the question properly.
Without that I will have to assume the reflection is over the y axis in which case S' will be (8, -6).