Hey there!
We know that since the triangle got smaller, it had to have shrunk. The answer will be a fraction, we can eliminate choice A and C.
We can use the x-axis as reference to figure out how much it was dilated.
J went from 8 to 4.
L went from 12 to 6.
K went from 4 to 2.
We know that the dilation was centered around the origin, so, we can assume that these numbers were not influenced by anything other than the dilation.
4 is half of 8, 6 is half of 12, and 2 is half of 4.
The correct answer is 1/2.
I hope this helps!
~kaikers
The answer is 1 time 3/4=3/4
Here is an example:
Find the MAD of 2,4,6,8 Step 1 : Find the mean of the data : (2+4+6+8) / 4 = 20/5 = 4 Step 2 : Find the distance between each data and mean. Distance between 2 and 5 is 3 Distance between 4 and 5 is 1 Distance between 6 and 5 is 1 Distance between 8 and 5 is 3
Step 3 : Add all the distances : 3+1+1+3 = 8
Step 4 : Divide it by the number of data : 8 / 4 = 2 2 is the average absolute deviation.
The common difference is 3.5
The nth term rule for this equation would be 3.5n-1
