1. Simplify the complex number, and write answer in the form a + bi. 3+21 a. -6+1 b. -3+51 4-21 8-31 C -5+1 2. Solve each equation for y and then determine whether the equation defines y as a function of x. a. 2x + y =6 b. x2 + yz = 1 c. x ty = 16 3. For each of the functions, calculate the following values: Simplify your answers. a. f(a) = b. f(a + h) = c. f(ath) -f(a) = f(x) = 2x2 - 5 (i1) f(x) = x -4x+3 (iii) f(x) =-10+6x2 4. Determine whether each of the following functions is even, odd, or neither. a. g(x) = 7x -x b. f(x) = 5x2+x4 c. g(x) = 6x-1