In this Trig Review Part 2 lesson, you will learn how to determine if the tangent of a real number is positive or negative by finding its location on the unit circle. You will also discover how to graph a sine function with a negative amplitude and find its amplitude, period, phase shift, and vertical shift. By knowing the basic sine function and how to manipulate it, you will be able to graph negative amplitude sine functions with ease.
Determining if the tan(4) is positive or negative; Graphing y = -2sin(x), and stating amplitude. Solutions to a Review for a Trigonometry Test for a class. . See pdf on that site under Trig, special videos.
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