The range of this function is all real numbers such that 0 ≤ y ≤ 40.
A range is the set of all real numbers that connects with the elements of a domain. This simply means that, a range is the solution set on the y-axis.
Based on the table (see attachment), we can logically deduce that when the time (x) is zero (0), the amount of water remaining in the bathtub (y) is 40.
Therefore, the range of this function is all real numbers such that 0 ≤ y ≤ 40.
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