Eric Nicholas K's answer to trish's Secondary 3 A Maths Singapore question.
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Something like this would be good. We pretend h = 100 first.
To see afterwards for the regions where h >= 100, we do a visual sketch of the graph to help us.
Or, you can randomly substitute numbers not equaling to the two values of t found earlier to see whether h is more than or less than 100 before determining the inequality signs.
To see afterwards for the regions where h >= 100, we do a visual sketch of the graph to help us.
Or, you can randomly substitute numbers not equaling to the two values of t found earlier to see whether h is more than or less than 100 before determining the inequality signs.
Date Posted:
4 years ago
oh i see, thank you so much for the detailed explanation! :)
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