Question

Write a rule to describe the transformation that is a reflection across the X-AXIS.(x,y)->(y,x)....((x,y)->(-x,y)....(x,y)->(-x,-y)....(x,y)->(x,-y)

Answer 1

should be the last one

Answer 2

Why is it the last one?

Answer 3

i thought it was the second one ! i don't know ;\

Answer 4

Yeah I think you are right...it should be the second one.

Answer 5

Across x means that x will go from negative to positive or vice versa if your reversing it.

Answer 6

So the sign will chance for x and not for y

Answer 7

Oh .. okay thanks romero (:

Answer 8

For example, assume the function:
f(x) = -5[6(x-6)] + 5 is a transformation of f(x) = x^2
where -5 tells us the reflection on the x axis.

The transformation map would be the following:
(x,y) --> (x/6 + 6, -5y + 5)

Answer 9

the second one would imply a reflection on the y axis.

Answer 10

think about it, if you had a parabola.