I’m rly confused pls help

Algebra 1: unit 6 part 2 of test a) the table shows a linear function. x 0 1 2 3 5 13 21 29 37 45 53 (a) determine the difference of outputs of any two inputs that are 1 unit apart. show your work. (b) determine the difference of outputs of any two inputs that are 2 units apart. show your work.

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

What is the y intercept of f(x)=(1/2)^x?