(x + 15) + (x + 5) + (x + 15) + (x+5)
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In this situation, the height of the water is a linear function of the time.
<h3>What is a linear function?</h3>A linear function is modeled by:
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be considered as the initial value.
In this problem:
- The full can has a height of 20 cm of water, hence b = 20.
- The height decreases by a factor of each minute, and this factor is the slope m.
Hence, the height of the water is a linear function of the time.
You can learn more about linear functions at brainly.com/question/24808124