Question

@iGreen

Answer 1

The vertices of triangle QRS have coordinates Q(1, −2), R(3, −2), and S(2, −4).

Which coordinates are the coordinates of the vertices of triangle QꞌRꞌSꞌ when triangle QRS is reflected across the x-axis?

A.
Qꞌ(−1, −2), Rꞌ(−3, −2), Sꞌ(−2, −4)

B.
Qꞌ(1, 2), Rꞌ(3, 2), Sꞌ(2, 4)

C.
Qꞌ(2, 1), Rꞌ(2, 3), Sꞌ(4, 2)

D.
Qꞌ(2, −4), Rꞌ(6, −4), Sꞌ(4, −8)

Answer 2

Here's the rule for reflection of the x-axis:

(x, -y)

Answer 3

(1, -2)

Just multiply -1 to the y-value

Answer 4

@Master_Chief_117

Answer 5

Still confused. (Sorry lol)

Answer 6

(1, -2)
^ x-value

(1, -2)
^ y-value

Multiply -1 to the y-value

Answer 7

-1 x -2 = 2

Answer 8

Yes, so we have (1, 2)

That's our first point..and only one of the options has that.

Answer 9

B.

Answer 10

Thanks :)

Answer 11

Correct \(\Huge\ddot\smile\)