let x feet be the highest of the boxes , and y be the number of boxes.
the answer is coming as 15 feet for 20 boxes and 12 boxes to reach the ceiling of 9 feet high
-5y y=-2 -3x 6y=-12 substitution
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Answer:
This translates to "y is any real number such that it is 0 or larger".
The reasoning is that the result of any absolute value function is either 0 or positive. In other words, we'll never get a negative result of an absolute value function. This is due to how absolute value represents distance. Negative distance does not make sense.
So if y = |x-3| then y = 0 is the smallest output possible. We could have any positive output we want.
In terms of a graph (see below), the V shape is at the lowest point (3,0). The y coordinate is all we care about in terms of finding the range. So we see the lowest y value is y = 0.
