### 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.

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Sample Problems
(10)

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###### Problem 1

How to interpret and simplify summation notation.

###### 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.