Question

Now reflect across the y axis to create A"B"C" what are the new coordinate?
A(1,5)
B(9,5)
C(7,2)

Answer 1

To reflect a point across the y-axis, you change the sign of the x-coordinate while keeping the y-coordinate the same.

Let's apply this to the points A, B, and C:

1. A(1, 5) → A"(-1, 5)
2. B(9, 5) → B"(-9, 5)
3. C(7, 2) → C"(-7, 2)

So the new coordinates after reflecting across the y-axis are:
- A"(-1, 5)
- B"(-9, 5)
- C"(-7, 2)