Question

I am so confused! Line of reflection help needed:
Which of the following does not show a line of reflection for A and A'?

Answer 1

Please explain to me. They all seem to have lines of refelection

Answer 2

a4

Answer 3

why

Answer 4

count the amount of units from the line to each point

Answer 5

Think about it like this, if you folded the paper on that line, would the dots match up?

Answer 6

9

Answer 7

guess not then

Answer 8

its 6 to one dot to the line, and 3 from the other dot to the line

Answer 9

ok, have to the same amount of distance from each point to line of reflection

Answer 10

thank u for helping :)

Answer 11

Exactly! You're welcome :D