Question

Triangle XYZ is reflected across the y-axis, and X = (4, –5). What are the coordinates of X’ ?

(–5, 4)
(–4, –5)
(4, 5)
(–4, 5)

Answer 1

we want to move the point across this axis:

Answer 2

ok

Answer 3

this means that the x value (from (x, y)) becomes negative

x originally equals 4
now it becomes a -4

the y value stays the same

what do you think the answer is? :)

Answer 4

-4-5

Answer 5

perfect! :)

Answer 6

thx

Answer 7

no problem ^_^