What is the domain and range of the relation represented by the set of ordered pairs? {(2, 6), (2, 0), (-4, -2), (-4, 6)}

A:
The mapping does not represent a relation.

B:
D: {0, 2, 6}
R: {-4, -2}

C:
D: {-2, 2, 6}
R: {-4, 0, 2}

D:
D: {-4, 2}
R: {-2, 2, 6}

Let f(x)=2x and g(x)=2x. graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ?me asap

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.

After reading 80% of her e-mails in her inbox, danette still has m unread e-mails. which of the following expressions could represent the number of e-mails danette had in her inbox before she started reading? choose 2 answers: (choice a) 5m (choice b) 1.8m (choice c) 80m (choice d) m/0.8 (choice e) m/1−0.8