Y = 1, x = 1 hope this helps!
Anything with 4 sides is a quadrilateral like a rhombus square trapezoid and diamond
An obtuse angle is an angle that is in between 90 degrees and 180 degrees. It looks like this
B- Not sure if it's a line
C- y=(-x/2)-6
D- y=4x-12
E- y=(2/5)x-10