Question

△ABC is reflected to form ​​ ​ △A'B'C' ​.

Answer 1

Reflection across the y-axis

Answer 2

Answer:

Option B.

Step-by-step explanation:

It is given that △ABC is reflected to form​​ △A'B'C' ​.

It is given that the vertices of triangle ABC are A(4,1), B(6,3) and C(2,4).

From the given figure it is clear that vertices of triangle A'B'C' are A'(-4,1), B'(-6,3) and C(-2,4).

The relation between preimage and image is defined by the rule

$(x,y)\rightarrow (-x,y)$

Reflection across y-axis represented by the above rule.

It means the △ABC is reflected across the y-axis to form​​ △A'B'C' ​.

Therefore, the correct option is B.