help! ΔABC is reflected across the x-axis and then translated 4 units up to create ΔA′B′C′. What are the coordinates of the vertices of ΔA′B′C′ ?

A′(-3, 3), B′(-1, 1), C′(-2, 3)

A′(3, -3), B′(1, -1), C′(2, -3)

A′(3, -5), B′(1, -7), C′(3, -5)

A′(-3, 3), B′(-1, 1), C′(-2, -3)

Question

help! ΔABC is reflected across the x-axis and then translated 4 units up to create ΔA′B′C′. What are the coordinates of the vertices of ΔA′B′C′ ?

A′(-3, 3), B′(-1, 1), C′(-2, 3) 

A′(3, -3), B′(1, -1), C′(2, -3)

A′(3, -5), B′(1, -7), C′(3, -5)

A′(-3, 3), B′(-1, 1), C′(-2, -3)

anonymous · Answer

attachment

chaise · Answer

Reflection in the x axis makes the x coordinate the same, and the y coordinate negative. And then you shift the object 4 units in the positive y direction.

Does this help?

anonymous · Answer

@chaise i see, so then its obviously B right?

anonymous · Answer

wait..wouldn't that actually be D?

chaise · Answer

I think D, could be wrong :)

anonymous · Answer

does anyone know if this is right? want to be sure before i give him a medal lol

domebotnos · Answer

i suppose you are correct