The discriminant is \({b^2} - 4ac\), which comes from the quadratic formula and we can use this to find the nature of the roots. Roots can occur in a parabola in 3 different ways as shown in the ...

Laws of logarithms and exponents Revise what logarithms are and how to use ... graph translations are used to sketch the derived, inverse or other related functions. Complete the square to find ...