Chapter 5, Problem 11P

Plot the function $f\left(x\right)=\frac{x^2-5x-12}{x^2-x-6}$ in the domain $-1\le x\le 7$ . Notice that x²-x-6 the function has a vertical asymptote at x = 3. Plot the function by creating two vectors for the domain of x. The first vector (name it xl) includes elements from -1 to 2.9, and the second vector (name it x2) includes elements from 3.1 to 7. For each x vector create ay vector (name them yl and y2) with the corresponding values of y according to the function. To plot the function make two curves in the same plot (yl vs. xl, and y2 vs. x2). Format the plot such that the y-axis ranges from -20 to 20.