Answer:
see attached diagram
Explanation:
Given triangle has vertices at points B(-5,3), C(-5,7) and D(1,7). The center of dilation is point A(-1,3) and the factor of dilation is
The dilation by a factor
decreases lengths AB, AC and AD twice, then image triangle vertices are midpoints of segments AB, AC and AD.
1. The midpoint E of the segment AB has coordinates

2. The midpoint F of the segment AC has coordinates

3. The midpoint G of the segment AD has coordinates
