(Section 4.8: Applications)
4.90
SECTION 4.8: APPLICATIONS
PART A: WORD PROBLEMS
We did a word problem in
Notes 4.32
. Some tips:
• Read the problem carefully. Underline, highlight, or summarize key pieces of
information so that you don’t have to keep rereading the entire problem.
• Define variables, draw and label diagrams, draw tables, etc. Visual aids often
help.
In Calculus: You will need to distinguish between aspects of the problem
that remain fixed (or constant) and aspects that change.
• Make appropriate unit conversions. For example, if lengths are given in both
inches and feet, make sure you use only inches or only feet when you draw
diagrams and write equations.
• Sometimes, the problem gives you “red herrings” – information that does not
help you solve the problem. Ignore them.
• Make sure you clearly indicate the answer(s) to the question(s) you are asked,
especially if your work is messy.
• Make sure you answer
all
the questions you are asked.
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 Fall '11
 staff
 Calculus, Pythagorean Theorem, Right triangle, Hypotenuse, triangle

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