Question

Triangle def with vertices D(2, 5), E(6, 4), and F(3, 3), is reflected across the line 2 A student determined one of the vertices on the image to be (2, –5). Evaluate the student’s answer. .

Answer 1

Since this is a reflection, the vertex that's most likely to land onto (2, -5) is D(2, 5)

The mirror line must be the x-axis (y = 0)


The image of E(6, 4) will be (6, -4)

The image of F(3, 3) will be (3, -3)

In general, point (x, y) will land on (x, -y)