Triangle ABC below is reflected across the y-axis and then translated 1 unit right and 2 units down.

A)Write the coordinated of the vertices of the image after reflection.
B)Write a rule for the translation. Use arrow rotation.
The original coordinates A=(1,-3) B=(4,-5) C=(3,-1)
My answer: New coordinates A=1+1=2, -3-2=-5 Coordinates (2,-5)
B=4+1=5,-5-2=-7 Coordinates (5,-7)
C=3+1=4,-1-2=-3 Coordinates (4,-3)
So the reflection coordinates of the vertices are A (2,-5), B (5,-7), c (4,-3). That's all of part a) I don't know how to do part b).

What are you doing to help Starfire? I don't see you trying to figure it out. This is a sight to reflect on the answers you have chosen. I bet you just pissed because you have been looking around for 30 minutes and haven't found any answers. Before you come on this site, at least try to answer the question.

For part B look up a graph with the same units and graph it out. You can see that the coordinates went from quadrant 1 to quadrant 2. Also for number 8 I'm not sure but I think that you just have to bring the triangle down 2 and move it to the right 1. so your new coordinates should be:

A(2,1) B(5,3) and C(4,-1) I hope I'm correct and that I helped some one today!

has vertices at S(1, 1), T(2, -3) and U(4, 0)

nub

Great job on part A! Let's move on to part B, where we need to write a rule for the translation.

To write a rule for the translation, you can use arrow rotation notation. This notation consists of three parts: the direction of the translation (left or right), the distance of the translation (how far you moved in the x-direction), and the distance of the translation (how far you moved in the y-direction).

In this case, we are translating the triangle 1 unit right and 2 units down. So, the rule for this translation can be written as follows:

T(x, y) → (x + 1, y - 2)

The "T" represents the translation, and we indicate that we are moving "x + 1" units to the right and "y - 2" units down.

Therefore, the rule for the translation of this triangle would be: "T(x, y) → (x + 1, y - 2)".

Well done! You have successfully answered both parts A and B of the question. If you have any additional questions, feel free to ask!

a reflection across the y-axis causes the x value to become opposite, while the y stays the same

using your wording:

(x,y) ----> (-x + 1, y - 2)

A(1 , -3) ----> A' (0, -5)
B(4 , -5) ----> B' (-3 , -7)
C(3 , -1) ----> C' (-2 , -3)

You should really have made a sketch to verify.
It would have shown your new points to be incorrect.

@Anonymous... what in the world you trying to say and @Reiny where you going with that? Its Connexus Math B Unit 4 Lesson 8 so yea. Guys come on if you are trying to be useful just turn off your computers and back away slowly because just wow you guys. I am not being rude but nean- raven from teen titans go.