Question

Triangle ABC has vertex coordinates A(0, -3), B(-1,0), and C(-2, -1). It is

reflected across the x-axis. What are the coordinates of A'B'C?
O A. A'(3,0), B'0,1),C'(1.-2)
B. A'(0,3). B'(-1,0).C1-2,1)
C. A'0.-3).B'(1,0).C12,-1)
D. A'(-3,0).B'0.-1).C'(-1,-2)

Answer 1

9514 1404 393

Answer:

B. A'(0,3), B'(-1, 0), C'(-2, 1)

Explanation:

The transformation for reflection across the x-axis is ...

(x, y) ⇒ (x, -y) . . . reflection across the x-axis

Then ...

A(0, -3) ⇒ A'(0, 3) . . . . . . matches choice B only