What is a parabola? What are the key features of a parabola?
Plot a quadratic equation, what do you see?
We see a parabola :) The graph of a quadratic function is a U-shaped curve called a parabola
Do you notice vertex?
If the parabola opens down, the vertex represents the highest point on the graph, or the maximum value.
The parabola is symmetric with a vertical line drawn through the vertex, called the axis of symmetry.
The x intercepts represent the zeros, or roots, of the quadratic function, the values of x at which y = 0