2.1 Graphs of Functions
(A) Drawing graphs of functions
1. To draw the graph of a given function, the following steps are taken.
Step 1: Construct a table of values for the given function.
Step 2: Select a suitable scale for the x-axis and y-axis, if it is not given.
Step 3: Plot the points and complete the graph by joining the points.
Step 4: Label the graph.