The expression x2 - 16 is equivalent to
(x + 2)(x - 8)
(x - 2)(X + 8)
(x + 4)(x - 4)
(x + 3)(x - 8)
+
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Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.