Chan Zhi Zhen's answer to Jinnyeol's Secondary 4 E Maths Singapore question.

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Chan Zhi Zhen
Chan Zhi Zhen's answer
249 answers (Tutor Details)
1st
Note that the width of the prism need not be added in the calculations because it remains unchanged throughout :)
Jinnyeol
Jinnyeol
4 years ago
Ohhh this really helps a lot, thank you so much!! :D
Eric Nicholas K
Eric Nicholas K
4 years ago
Jinnyeol, for part two, the shape of the graph will look like that of y = ln x or the bottom right quadrant of the graph of y = -1/x, except that the graph starts from (0, 0) since the container is initially empty and the water level at the start is zero.

This is because the same volume of water fills up a “larger water cross sectional area”, hence slowing down the rate of increase of the height.
Jinnyeol
Jinnyeol
4 years ago
Yepp!! I understood the drawing of graph part:)