3) Please write 2 inverse functions each for the following:

a) y= log X

b) y= (1/2)^x

7) What is the domain, range, y-intercept, and x-intercept of y = 2 log|(x+2)^0.5] -2

8) A liquid has a pH of 4.5. What is the hydrogen ion concentration (mol/L) in the liquid?

9) A new car depreciates in value by 4.5% every year. When will the car be worth half its o

How much will it be worth after 10 years compared to its original value?