Quadratics when you know x-intercepts
- Author:
- Mark Humphries
Find the quadratics that have (2,0) and (6,0) has x-intercepts.
1) Plot the x-intercepts.
2) Construct the perpendicular bisector of the segment that connects the two x-intercepts.
3) Use the command "fitpoly({list of points},degree of polynomial) to create the function. We want to use a slider for the y-coordinate of the vertex.