MATLAB

Plot the function

f(x) = (x² + 3x - 5) / (x² - 3x - 10)

for -4 <= x <= 0. Notice that the function has two vertical asymptotes. Plot the function by dividing the domain of x into three parts: one from -4 to near the left asymptote, one between the two asymptotes, and one from near the right asymptote to 9. Set the range of the y axis from -20 to 20.