Revise how to recognise and determine the equation of a quadratic function from its graph. BBC Bitesize Scotland revision for SQA National 5 Maths.

If the graph of the quadratic function y = a x 2 + b x + c crosses the x-axis, the values of x at the crossing points are the roots or solutions of the equation a x 2 + b x + c = 0. If the ...

Second, it gives you uncertainties in the coefficients of the fitting function. Plot 0.997: I call it Plot 0.997 because if you just do a google search for Plot you will never find it.

ARMAN SABBAGHI, TIRTHANKAR DASGUPTA, C. F. JEFF WU, Indicator functions and the algebra of the linear-quadratic parameterization, Biometrika, Vol. 101, No. 2 (JUNE ...