Mathematics I (Calculus) - Old Questions

2. (a) Find the domain and sketch the graph of the function f(x) = x² - 6x . 

Given

For domain, for all real values of x, f(x) exist. So, domain is set of all real number i.e. domain is  

For Graph, calculating the values of y = f(x) for different values of x;

Plotting these points on graph we get: