Question

Point D'D ′ D, prime is the image of D(-2, 1)D(−2,1)D, left parenthesis, minus, 2, comma, 1, right parenthesis under a reflection across the xxx-axis. What are the coordinates of D'D ′ D, prime?

Answer 1

When a point is reflected, it must be reflected across a line

The coordinate of D' is: (-2,-1)

The coordinates of D are given as:

$\mathbf{D =(-2,1)}$

The line of reflection is the x-axis

The rule of reflection, across the x-axis is:

$\mathbf{(x,y) \to (x,-y)}$

So, we have:

$\mathbf{(-2,1) \to (-2,-1)}$

This means that; the coordinates of D' are:

$\mathbf{D' = (-2,-1)}$

Read more about reflections at:

https://brainly.com/question/17983440

Answer 2

Answer:

-2 -1

Step-by-step explanation: khan