Question

PLZ HELP ME
Lydia graphed ΔDEF at the coordinates D (−2, −1), E (−2, 2), and F (0, 0). She thinks ΔDEF is a right triangle. Is Lydia's assertion correct?

Yes; the slopes of segment EF and segment DF are opposite reciprocals.
Yes; the slopes of segment EF and segment DF are the same.
No; the slopes of segment EF and segment DF are not opposite reciprocals.
No; the slopes of segment EF. and segment DF are not the same.

Answer 1

See for yourself now that you have the graph

Answer 2

ok thx

Answer 3

im sorry but still dont get it

Answer 4

:^ now that you know ΔDEF isnt a right triangle it's either the 3rd or the 4th option

Answer 5

ok thx i got it from here

Answer 6

No problem