Question

Can some please please please help me with this geometry problem?

Answer 1

can write out the equations of line AB and DE, then compare their slopes

Answer 2

or can use distance formula to find out the length of DE, AB , compare and use property of middle point in triangle to prove DE =1/2 AB

Answer 3

show that slope of AB is zero
also slope of DE is zero too

Answer 4

when slope are =
those line are ||

Answer 5

Knowing two points on a line (x1, y1) and (x2, y2),
the slope m = (y2-y1) / (x2-x1)