Literal equations Ex1. 2x+y=2a. solve for Y
You subtract 2x
Ex2. 4m+3y=10 solve for Y
You subtract 4m but then divide by 3.
How do you know if you need to subtract or divide?

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

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.

5. (04.07)which of the following exponential functions goes through the points (1, 12) and (2, 36)? (2 points)f(x) = 3(4)^xf(x) = 4(3)^-xf(x) = 3(4)^-xf(x) = 4(3)^x