In the xy-plane, the graph of y =2x2 −15x intersects the graph of y=x atthe points (0, 0) and (a, a) . What is the value of ‘a’ ? D
Do I factor out first?
Thanks
Actually I'd write it slightly different: We know that (x, y) = (a, a) for some value of a. So $\displaystyle y = 2x^2 - 15x$ becomes $\displaystyle a = 2a^2 - 15a$