Graphing Trig Functions
9th Grade · Math · 45 min
Lesson Preview
Learning Objective
I can graph trigonometric functions and identify key features such as amplitude and period.
- 1
The amplitude of the function f(x) = 2sin(½x) is 2, which means the function oscillates between y = 2 and y = -2.
- 2
The general form of a sine function is f(x) = A sin((2π/P)x), where A is the amplitude and P is the period.
- 3
Given the graph of a trigonometric function, the period can be determined by measuring the horizontal distance it takes for the function to complete one cycle, and the amplitude is how much it swings in the positive or negative direction.
