To sketch a quadratic function you must first determine the roots, nature and coordinates of the turning point and the y-intercept. Practice sketching a quadratic function ahead of your National 5 ...
We need a utility to calculate roots of a Quadratic Equalition. If D > 0: x1 = (-b + sqrt(D)) / (2a) x2 = (-b - sqrt(D)) / (2a) If D = 0: x = -b / (2a) If D < 0: indicate no real roots exist (complex ...
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