Find the image of the triangle having vertices(1, 2),(3, 4),(4, 6)under the translation that takes the point(1, 2) to(9, 1) T(3,4)= T(4,6)=?

Answer 1

That's a change of +8 for the x-coordinate and -1 for the y-coordinate. 

The same change to the other vertices would produce 

T(3,4) = (11,3) 

T(4,6) = (12,5)