Hi! May you please explain how to solve number 4 algebraically from the practice questions from the “working with advanced systems of equations” chapter? Thanks!

Hi! I was wondering what the best way to plug in would be for “example 1” in the “exponents and exponential functions” chapter?

Hi! May you please explain how to find the function for f(x) for number 5 from the practice questions in the “functions” chapter? I saw the solution, which said to find f(5+3), and then I got the correct answer, but I wanted to see if there is a function that could be found (as I tried to find it but I found it incorrectly and got an incorrect answer).

Hi! May you please explain number 8 from the practice questions in the “lines” chapter? I understand that A is the correct answer after looking at the table values, but I don’t understand it from the equation itself. Thanks!