Question

Help!



Triangle ABC has vertices at A(1, 2), B(4,6), and C(4,2) in the coordinate plane. The triangle will be reflected over the x-axis and then rotated 180o about the origin to form Triangle A’B’C’. What are the vertices of Triangle A’B’C’?

Answer 1

Hey :)
Let's apply these changes to A and see what happens.

Answer 2

k

Answer 3

Reflection across the x-axis,
so your y-coordinate will switch from positive to negative,
A(1,2) ---> (1,-2)

Answer 4

this it A’(1, -2), B’(4, -6), C’(4, -2)?

Answer 5

Rotating 180 degrees,
I guess when we apply this, it will change the signs of both coordinates,
(1,-2) ---> A'(-1,2)

Answer 6

k

Answer 7

So that takes care of A ---> A'
Do you think you can try B? :)

Reflection = negative y,
rotation 180 = negative both

Answer 8

B’(4, -6)

Answer 9

Hmm that doesn't sound right :d
you only applied the first transformation.
They want you to apply both transformations.

Answer 10

B’(-4, 6) lol this?

Answer 11

B(4,6) ---> (4,-6) ---> B'(-4,6)

Good! :)

Answer 12

A’(-1, 2), B’(-4, 6), C’(-4, 2)

Answer 13

yay good job!

Answer 14

one more question plz