Midterm Topics for MATH 170

Topic of interest Place(s) where examples can be found
Know the difference between the graphical, numerical, and theoretical/algebraic methods for solving a problem, and be able to use each of these appropriately. Homework 2
Other miscellaneous problems in homework
Know the key similarities and differences between difference equations and functional equations. Homework 2
Be able to compute the sequence of numbers generated by a difference equation. Homework 4
Homework 8
Linear models
  1. Know what the difference equation looks like
  2. Know what the functional equation looks like
  3. Be able to translate between the two descriptions (functional -> difference, difference -> functional)
  4. Know what the graph looks like
  5. Be able to determine whether a set of data is essentially linear by computing the first differences
  6. Be able to estimate the equation of a linear model based on a set of data and/or a verbal description of the situation
Homework 5
Homework 6
Homework 10, part 1, step (a)
Quadratic models
  1. Know what the difference equation looks like
  2. Know what the functional equation looks like
  3. Be able to translate freely between the two descriptions (functional -> difference, difference -> functional)
  4. Know what the graph looks like
  5. Be able to check whether a set of data is essentially quadratic by looking at the first and second difference
  6. Be able to estimate a quadratic model, based on data and/or a description
Homework 8
Homework 9
Homework 10
Homework 11, part 1
Series (summation of a sequence of numbers)
  1. Be able to compute the sum of a sequence of numbers that is linearly increasing and starts with term 1 of the sequence
  2. Be able to compute the sum of a sequence of numbers that is linearly increasing and starts with a term other than term 1
  3. Be able to develop quadratic models from summing up linear differences (for example, the computer network problem)
In class work on problems from page 110
Homework 8, selected problems
 
Proof: Be able to complete a proof by induction Homework 7, in particular
Homework 11, part 2

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