△rst is mapped to △r′s′t′ using each of the given rules.

for which rules is △rst congruent to △r′s′t′?

select each correct answer.

a) (x, y)→(−x, y)

b) (x, y)→(−x, −y)

c) x, y)→(x, y−7)

d) (x, y)→(−7x, −7y)

e) (x, y)→(0.07x, 0.07y)

We are given two triangles △RST  and  △R′S′T′. We are to determine which of the following choices are both triangles congruent to each other. The only choice which is true in this case is:

E) (x, y)→(0.07x, 0.07y)

This is possible since if we look at the coordinates of the second set of points, we can conclude that the scale factor used is 0.07.