Before a blizzard, there were already 12 inches of snow on the ground, and after the blizzard, there were 36 inches of snow on the ground. if it snowed at a constant rate during the blizzard, and if the blizzard lasted for 6 hours, for which of these functions does y represent the number of inches of snow on the ground if x represents the number of hours since the blizzard started?

Step-by-step explanation:

First, subtract the amount in total after the blizzard with the amount that was already there (before the blizzard):

36 - 12 = 24

Note that the blizzard lasted for 6 hours, and snow fell at a constant rate (the amount that fell per hour is the same). Divide 24 with 6:

24/6 = 4

4 inches per hour.

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Now, set up a table: Note that it means: when x = hour, y = inch.

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answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify