How To Draw Quadratic Function Curve

1. Find intercept point on x axis by y = 0
2. Find intercept point on y axis by x = 0
3. Find many possible points

4. Remember that the quadratic function is smoothly curve
5. There are two possible curve, right-side-up, and upside-down
6. Determine the vertex by formula:



7. Find additional point that can help you to draw it
8. Plot every point that you have got to the Cartesian coordinate
9. Draw a smoothly curve by connecting the point, and don’t use ruler to draw it