Question

The x-axis ranges from negative 5 to 7 in increments of 1. The y-axis ranges from negative 2 to 6 in increments of 1. Point upper A has coordinates left parenthesis negative 5 comma 4 right parenthesis. Point upper B has coordinates left parenthesis negative 2 comma 2 right parenthesis. Point upper C has coordinates left parenthesis negative 1 comma 5 right parenthesis. Point upper A double prime has coordinates left parenthesis 7 comma 1 right parenthesis. Point upper B double prime has coordinates left parenthesis 4 comma negative 1 right parenthesis. Point upper C double prime has coordinates left parenthesis 3 comma 2 right parenthesis.

What kind of a transformation, besides a translation, has been done to △ABC
△
𝐴
𝐵
𝐶
?

(1 point)
Responses

a composition
a composition

a reflection
a reflection

a dilation
a dilation

a rotation
a rotation

Answer 1

Reflection.

Reason: Each point is the reflection of the original across the vertical line x = 1, then translated down 3 units. (E.g. A(-5,4) → reflect across x=1 gives (7,4) → translate down 3 gives (7,1).)