Meg was given the following rule: (x, y)→‘‘(–5x, –5y). Meg states that the type of transformation that has occurred is a dilation by a scale factor of –5. Explain the role of the negative symbol in this sequence of transformations.

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236