Write the equations of four lines that intersect to form a square whose sides are not parallel to the axes.

Where would I start, and how would I complete this?

Thank you so much in advance!

3 answers

line through (0,0) and (1,1)
line through (1,1) and (0,2)
line through (0,2) and (-1,1)
line through (-1,1) and (0,0)
is one (admittedly unimaginative) way.
Now do a cube :)
PARALLEL (slope is same & intercept is different)
LINE 1: x-1
LINE 2: x+1

PERPINDICULAR (slope has flipped fraction & opposite sign)
LINE 3: -x-1
LINE 4: -x+1