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How do you find the amplitude maximum minimum and period for y equals -1 plus 3sin4x?
Wiki User
∙ 14y ago
y = -1 + 3 sin 4x
Let's look at the equation of y = 3 sin 4x, which is of the form y = A sin Bx, where
the amplitude = |A|, and the period = (2pi)/B.
So that the amplitude of the graph of y = 3 sin 4x is |3| = 3, which tell us that the maximum value of y is 3 and the minimum value is -3, and the period is (2pi)/4 = pi/2, which tell us that each cycle is completed in pi/2 radians.
The graph of y = -1 + 3 sin 4x has the same amplitude and period as y = 3 sin 4x, and translates the graph of y = 3 sin 4x one unit down, so that the maximum value of y becomes 2 and the minimum value becomes -4.
Wiki User
∙ 14y ago
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