In the dilation of a triangle with a scale factor of 5 and a center point of dilation at the origin (0, 0), each point of the original triangle ABC is moved away from the center of dilation (the origin) by a factor of 5. This means that the new triangle A'B'C' will be 5 times larger than triangle ABC and will be 5 times farther from the center point of dilation.
Thus, the correct description is:
Triangle A'B'C' is 5 times as large as triangle ABC and is 5 times as far from the center point of dilation.