none of this was hard to remember or work out. Just remember that you rewrite the zero as (x-S)(x-R) and the rest follows very logically. The only real problem is not many quadratic equations have ...

25 and \({x}\) = –25. It is normally quite difficult to accurately plot and read off the solutions to quadratic equations by using a graphical method – so only do this if the question ...

A row is used for each term in the equation to work out the coordinates. To draw a quadratic graph from an equation: Add up the terms of the quadratic expression, a column at a time, to find the ...