How do we recognize and graph periodic and trigonometric functions? Graphs of Sine and Cosine Essential Questions How do we recognize and graph periodic and trigonometric functions? Holt McDougal Algebra 2 Holt Algebra 2
Translations of Trigonometric Graphs Translation of a Sine Function Amplitude Period
Translations of Trigonometric Graphs Translation of a Sine Function Amplitude Period Moving a graph left or right is called a phase shift.
You can combine the transformations of trigonometric functions You can combine the transformations of trigonometric functions. Use the values of a, b, h, and k to identify the important features of a sine or cosine function. Amplitude Phase shift y = asinb(x – h) + k Vertical shift Period
Translations of Trigonometric Graphs Draw one cycle of the function’s graph. Amplitude Period Translation down 2
Translations of Trigonometric Graphs Draw one cycle of the function’s graph. Amplitude Period Translation up 3
Translations of Trigonometric Graphs Draw one cycle of the function’s graph. Amplitude Period Translation right p
Translations of Trigonometric Graphs Draw one cycle of the function’s graph. Amplitude Period Translation left p
Translations of Trigonometric Graphs Draw one cycle of the function’s graph. Amplitude Period Translation right p/2
Translations of Trigonometric Graphs Draw one cycle of the function’s graph. Amplitude Period Reflection over x-axis
Translations of Trigonometric Graphs Draw one cycle of the function’s graph. Amplitude Period Reflection over x-axis
Lesson 11.1 Practice B