What is the rule for the reflection? will mark brainliest!

Option C is correct.

Step-by-step explanation:

From the given figure:

Coordinate of Triangle ABC are:

A(-2, 1), B(-3, 4) and C(-4, 1)

And

Coordinate of Triangle A'B'C' are:

A'(1, -2), B'(4, -3) and C'(1, -4)

The rule of reflection across the line:

then;

Apply the given rule of reflection on coordinate of triangle ABC

Therefore, the rule of reflection used here is

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)