According to the Rational Root Theorem, which is a factor of the polynomial f(x) = 3x^3 – 5x^2 – 12x + 20?

What are the interpretations of the line 3x - 15y = 60? x-intercept y-interception a: x 20 - y -4 b: x 5 - y 20 c: x -3 - y 15 d: x -4 - y 20