Solve all questions

1. For the relations below, determine if it is a function and explain your reasoning. Then find the domain and range. (10 points) a. {(x, y) | x is the (biological) mother of y } b. {(x, y) | xEZ,y= x} 2. Given the functions f(x) = 3x2 - 2 and g(x) = vx - 5, find the following: (20 points) a. (f + 9) (x), and state the domain b. () (x), and state the domain c. (go f) (1) d. Find the difference quotient for f. J ( X +h) - f(x) h