# How to Find the Period of a Graph?

Certain trigonometric functions, such as sine or cosine functions, have graphs that fluctuate back and forth in regular intervals. The shortest interval at which the shape of a graph repeats itself...
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http://www.ehow.com/how_8362681_period-graph.html

## How to Determine a Period of a Sine Graph?

A sine graph is the graphical representation of a sinusoidal function, which is of the form y = A sin (Bx + C). Here, "A" is the amplitude, which is half the distance from the peak to the trough; 2...
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http://www.ehow.com/how_8344062_determine-period-sine-graph.html

## How to Find the Vertex of a Graph on the TI-83?

The vertex is the critical point of a parabola, where it reaches either its minimal or maximal y-value, depending on the orientation of the parabola. Your TI-83 graphing calculator can find the ver...
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http://www.ehow.com/how_8236457_vertex-graph-ti83.html

## How to Find F(X) From a Graph?

A function defines what f(x) is for any value of x. So for the function f(x) = 2x, if x =1, f(x) = 2. On a graph of a function, f(x) is represented by y. So on a graph for the function f(x) = 2x, ...
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http://www.ehow.com/how_8145442_fx-graph.html

## How to Find Graph Symmetry?

A graph has symmetry when two sides of the graph are mirror images of each other. It is possible to estimate symmetry based on the way the graph of an equation looks. Although graph symmetry is mor...
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http://www.ehow.com/how_8364146_graph-symmetry.html