Please help me!
A function f has a horizontal asymptote of y = -4, a vertical asymptote of x = 3, and a x-intercept at (1, 0).
Part (a): Let f be of the form f(x) = (ax + b)/(x + c). Find an expression for f(x).
Part (b): Let f be of the form f(x) = (rx + 3)/(2x + t). Find an expression for f(x).