The transformation rule tells you to subtract 6 from each x-coordinate and subtract 4 from each y-coordinate. That means
... coordinates (2, 5) become (2-6, 5-4) = (-4, 1)
... coordinates (6, 2) become (6-6, 2-4) = (0, -2)
... coordinates (3, -5) become (3-6, -5-4) = (-3, -9)
Plot the new coordinates and draw the triangle. In the figure, ∆EFG is the triangle after its relocation.