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Q1: Find the slope of the line passing through the pairs of points and describe
the line as rising, falling, horizontal or vertical.
(-1,0),(3,-5)

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