### Concept (1)

An important part of understanding functions is understanding their domain and range. Domain and range are all the possible x-values and y-values of the function, and can often be described easily by looking at a graph. In order to grasp domain and range, students must understand how to determine if a relation is a function and interpreting graphs.

### Sample Problems (10)

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 5 ∑ i² i=2
###### Problem 1
How to interpret and simplify summation notation.

Given an = 3n + 1,

find S4.
###### Problem 2
How to interpret and simplify a series.
###### Problem 4
Shortcut formulas for evaluating quadratic sums in Sigma notation.
###### Problem 5
Shortcut formulas for evaluating linear sums in Sigma notation.
###### Problem 6
Shortcut formulas for evaluating sums in Sigma notation that are neither arithmetic nor geometric.
###### Problem 7
Interpreting Sigma notation to find sums by hand (no formulas).
###### Problem 8
How to write sigma notation for an arithmetic series when we know how many terms are in the series.
###### Problem 9
How to write sigma notation for a finite geometric series.
###### Problem 10
How to write sigma notation for an infinite geometric series.