Asked by Anonymous

desribe how the graph of each funtion compares to the graph of y = l x l (absolute value)

a) y = 1 2x l
b) y = l 1/2x l
c) 2y = l x l
d) 1/2y = l x l

i don't understand when it is vertical/horizontal and when it is expansion or compression
Answered by bobpursley
a is expanded, y is twice what it was before for any x.

d) is expanded, y is (2abs x ) twice what it was before.
Answered by John
a) is horizontal compression by 1/2