It is a down shift of 3.
Also written as (x, y-3)
3x-14=4x-9
-4x -4x
-x-14=-9
-14 -14
-x=-15
-x/-1=-15/-1
x=15
Sorry if this is a bit confusing, but I hope I helped
6a-4 = 3a+54
3a = 58
a = 58/3
a= 19.333
Rate of Change represents the number of apartments cleaned each hour & this is linear.
