The general form of a quadratic equation is expressed as
ax^2 + bx + c
An example of a quadratic equation is
2x^2 - 4x - 2
The graph of this equation is shown below
The vertex of the graph is value of x and y at the bottom of the curve. Looking at the curve, the vertex is (1, - 4)
The axis of symmetry is the vertical line that divides the curve into two equal halves. The axis of symmetry of this curve is the line, x = 1
The y intercept is the point where the curve cuts through the y axis. From the graph, y intercept = - 2
