How to Draw a Graph of Quadratic Equation?

1. Analyze the quadratic equation whether its face upward or downward, if x is negative then the graph will face downward and if the x is positive then the graph will face upward
2. Determine the value of y by substituting x with any integer numbers to know whether your function has minimum or maximum peak
3. Point your value x and y  t the Cartesian diagram
4. Connect all of your points to make the graph