Write an equation that represents the transformations formed by the following items (a) horizontally shifting the graph of f(x)= x 4 units to the right and then vertically
shrinking the graph by a factor of =
2
1
(b) vertically stretching the graph of f(x)= Vx by a factor of 3 and then vertically
shifting the graph 4 units down and 2 units right.

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Can someone answer this question for me

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9