This also gives the equation of the line of symmetry for the quadratic graph. The value of \(y\) when \(x = 3\) is -5. This value is always the same as the constant term in the completed square ...

When a question asks you to 'solve' a quadratic equation, this means that you are to find the roots of the quadratic. In other words, where does the parabola cut the x-axis? As a graph cuts the ...