Question

For triangle ABC with A(2,1) B(6,1) and C (4,4), what are the coordinates of I A'B'C'after R(x-axis)?

Answer 1

You have the coordinates for triangle ABC

A (2,1)

B (6,1)

C (4,4)

To perform a reflection over the x-axis, the x-coordinarte remains the same and you have to invert the sing of the y-coordinate, for example for a point P(x,y):

Preimage → Image

P(x,y) → P'(x,-y)

So to reflect triangle ABC to triangle A'B'C' you have to do as follows:

A (2,1) → A'(2,-1)

B (6,1) → B'(6,-1)

C (4,4) → C'(4,-4)