A linear transformation of a variable involves multiplying each value of the variable by one number and then adding a second number. For example, consider the variable X with the following three values:

X 2 3 7One linear transformation of the variable would be to multiply each value by 2 and then to add 5. If the transformed variable is called Y, then Y = 2X+5. The values of Y are:

X Y 2 9 3 11 7 19