The change of elevation of the diver is of 15 metres.
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- Initially, the diver is stopped at a height of 11 metres.
- Then, he jumps, falling a distance of 11 metres, meaning that the initial change in elevation is of 11 metres.
- Finally, he reaches a depth of 4 metres, that is, 4 metres below the water, adding 4 metres more to the change in elevation, 11 + 4 = 15, and thus, the change of elevation of the diver is of 15 metres.
A similar problem is given at https://brainly.com/question/24150365
