Given any cubic or quartic equation with real coefficients, it can be transformed by a change of variable into a standard form, and thus solved by means of a double-sided scale (Fig. 1) in the ...

Reviewed Work: The Geometrical Key, or Construction of All Equations Linear, Quadratic, Cubic and Biquadratic, by a Circle and One Only Parabole by Tho. Baker Philosophical Transactions (1683-1775) , ...

Equations of curves - Intermediate & Higher tier – WJEC Solving quadratic equations graphically - Higher Quadratic, cubic and exponential graphs are three different types of curved graphs.