The graph of the triangle pre-image and image is as illustrated in the attached image.
What is the transformation carried out on triangle STU?
The transformation which represents the reflection over the y-axis as in the task content renders the x-coordinates of the vertices to be multiplied by -1.
The two line segments drawn are from the vertices S and S' to the reflecting line y-axis are of equal length. The same concepts applies to the T and T'. This follows from the fact that reflections over a line renders the image and pre-image at the same distance from the reflection line.
Read more on reflection over the y-axis;
brainly.com/question/12371220
#SPJ1