Final answer:
The coordinates of the triangle after a dilation with a scale factor of 1/2 are A'(0, 0), B'(4.5, 2), and C'(-1, 5).
Step-by-step explanation:
To find the coordinates of the triangle after a dilation with a scale factor of 1/2, we need to apply the dilation to each vertex of the triangle.
For vertex A(0, 0), the new coordinates would be (0*(1/2), 0*(1/2)) = (0, 0).
For vertex B(9, 4), the new coordinates would be (9*(1/2), 4*(1/2)) = (4.5, 2).
For vertex C(-2, 10), the new coordinates would be (-2*(1/2), 10*(1/2)) = (-1, 5).
Therefore, the coordinates of the triangle after the dilation are A'(0, 0), B'(4.5, 2), and C'(-1, 5).