If a function, f(x) is shifted to the left four units, the
function that represents the transformation would be f(x+4). The
correct answer between all the choices given is the third choice or letter C. I
am hoping that this answer has satisfied your query about and it will be able
to help you.
Mean absolute deviation is the average of the sum of all deviations of the terms from the average of the terms...
mean=(5+9+9+11+16)/5=10
mad=[(10-5)+(10-9)+(10-9)+(11-10)+(16-10)]/5=2.8
The scale factor of the given dilation is 3.
Step-by-step explanation:
Step 1:
In order to determine the scale factor, we divide the measurement after scaling by the same measurement before scaling.
In the given graph, the preimage has a length of 3 units while the image has a length of 9 units.
Step 2:
So here the measurement after scaling is the length of the image which is 9 units and the measurement before scaling is the preimages length of 3 units.
The scale factor 
So the scale factor is the third option 3.
(x-3)
--------
(x-3)(x-1) aka x^2 - 4x+ 3