Reflection and Midpoint Concepts

Calculating the distance between points

Drawing a perpendicular line

Identifying the midpoints of the points

Finding the slope of the line

By averaging the coordinates

By multiplying the coordinates and dividing by 2

By subtracting the coordinates and dividing by 2

By adding the coordinates and dividing by 2

(0, -2)

(-2, -2)

(2, -4)

(0, -4)

(1.5, -5.5)

(-4, -4)

(0, -4)

(-4, 0)

-1

4

0

1

-1

4

0

-4

y = -x - 4

y = -x + 4

y = x + 4

y = x - 4

It moves to a new location

It becomes undefined

It maps back to itself

It doubles its distance from the line

(2, 2)

(-2, -2)

(2, -2)

(-2, 2)

By finding the slope of the line

By calculating the midpoint

By drawing a parallel line

By dropping a perpendicular to the line and extending it the same distance on the other side