# Point (a, b) is transformed by the rule (a, b−4) . What type of transformation occurred?

##
a translation of 4 units down

a translation of 4 units to the right

a translation of 4 units up

a translation of 4 units to the l

a translation of 4 units down

a translation of 4 units to the right

a translation of 4 units up

a translation of 4 units to the l

##### 1 Answer

Sep 7, 2016

A translation

#((0),(-4))#

#### Explanation:

Under the given transformation.

a remains unchanged and b is moved 4 units down.

The

#color(blue)"translation" ((x),(y))# moves a point in the x-y plane by x units horizontally and y units vertically.The translation

#((0),(-4))# describes this transformation.