Question

Jada fills the bathtub before taking a bath and then allows the water to drain when she is done. The graph below models the number of gallons of water, y, in the bathtub over time, t, in minutes.
On a graph, the graph increases, remains constant, and then decreases.

Is the number of gallons of water in the bathtub a function of time?

Answer 1

The number of gallons of water in the bathtub is a function of time. Therefore, it is true.

How to illustrate the graph?

The graph shows a curve that lets you find the number of gallons of water given any value of t betweeh 0 and 30 plus.

Hence, the number of gallons of time indeed is a function of time, in the interval shown by the graph.

The answer is true, because each t value is paired with exactly one number of gallons".

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