The curve C C\,C has equation y=x2+ax+by = x^2 + ax + by=x2+ax+b where a a\,a and b b\,b are constants.
Given that the minimum point of C C\,C has coordinates (4,−3)(4, -3)(4,−3), find the values of a a\,a and bbb.
63 exam-style questions on AQA A Level Maths 1.5.3 Quadratic functions. Each one has a worked solution and a mark scheme showing where the marks go.