A study was conducted to determine the relationship between the age, 푥, in years, of a certain brand of motorcycle and its value, 푦, in dollars. The equation 푦 = −750푥 +8,500 best models the data. Based on the equation, what is the estimated value of a motorcycle that is 5 years old?

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.