\What is the graph of the function f(x) = the quantity x squared minus 9x plus 20 over the quantity x minus 4 ? (6 points) Select one: a. a line that crosses the x axis at negative 5 and the y axis at 5. Discontinuity exists at negative 4, 1. b. a line that crosses the x axis at 5 and the y axis at negative 5. Discontinuity exists at 4, negative 1. c. a line that crosses the y-axis at 5 and has a slope of negative 1. Discontinuity exists at negative 4, 9. d. a line that crosses the x axis at negative 5 and the y axis at negative 5. Discontinuity exists at 4, negative 9.