How to Draw a Graph of Quadratic Function

This is the general form of quadratic function y=ax²+bx+c From that form we can make a graph. There are the steps of drawing graph of quadratic function.

1.      1. Choose one quadratic function. Ex : y=x²+3x+2

2.    2.   From that function, you can make suggestion with determine whether the graph face up wards or face down wards from the coefficient of a .

The graph face up wards a>0                                  The graph face up wards a<0

3.      3.. Draw x and y coordinate. Determine the point of x and y. you can get x point when y= 0 and y point when x=0.

4.      4. After that, you have 2 point. Put the point of x into x-axis and point of y into y-axis. You have to determine the maximum point and minimum point.

5.      5. Connect all point and draw the graph. Finally, you get parabolic graph.