How can you tell by looking at the coordinates of the two triangles that δ a'b'c' is a 180° rotation of δ abc? a) the coordinates cannot prove a 180° rotation. b) the y-coordinates of the points on δa'b'c' have opposite signs from the corresponding points on δabc. c) the x-coordinates of the points on δa'b'c' have opposite signs from the corresponding points on δabc. d) both the x and y coordinates of the points on δa'b'c' have opposite signs from the corresponding points on δabc.

under a rotation about the origin of 180°

a point (x, y ) → (- x, - y )

hence D is correct, both the x and y coordinates of the points on ΔA'B'C' have opposite signs from the corresponding points on ΔABC

step-by-step explanation:

the options are kind of confusing. i can tell you what i see going on here when i look at the graph.

the class and exam medians are closely related, and it looks like the low outlier on the exam did pull the median lower. [tex][/tex]

answer: 1, 3 and 5 are correct

step-by-step explanation: