# Find the line of reflection that maps the trapezoid, formed with vertices at #A(-3,1)#, #B(-1,1)#, #C(0,4)# and #D(-4,4)#, onto itself?

##### 1 Answer

Dec 19, 2016

#### Explanation:

The trapezoid is formed with its vertices at

As ordinates of

Further

Hence the line joining the midpoints of

and its equation is