Save guides, add subjects and pick up where you left off with your BBC account. All quadratic functions have the same type of curved graphs with a line of symmetry. The graph of the quadratic ...

Roots of a quadratic equation ax 2 + bx + c = 0. ... (y = ax^2 + bx + c \) is drawn, the solutions to the equation are the values of the x-coordinates of the points where the graph crosses the x-axis.