Quadratic graph lines are U- or Õˆ-shaped, which is called a parabola. A linear graph can be drawn using only three points. A quadratic graph is a curve, so more points are plotted to support accuracy.
The minimum point is the minimum y value that the parabola reaches. The maximum point is the maximum y value that the parabola reaches. The symmetry of the parabola is created because each x value is ...
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