What happens to the graph of a trigonemetric function if the amplitude, a, is negative?

Find the amplitude of a sine or cosine function. Find the period ... Question: What effect will multiplying a trigonometric function by a ... same as the graph of y = sin x and y = cos x, respectively, stretched ... With both graphs to look at, it is easier to see what ... the graph. Question: What happens if we allow the input variable, x. A graph of a cosine curve is shown with attributes labeled ... Use trigonometric (sine, cosine) functions to model and solve problems; justify results. a) Solve ... Amplitude - How far above or below the axis of the wave a sine or cosine function goes ... Note that the amplitude is always positive, even if the coefficient is negative.