In this part you do not have to sketch the graph and you may even be given the sketch of the graph to start with. For a quadratic equation of the form \(y = k{(x - a)^2} + b\), the following diagram ...

https://doi.org/10.4169/college.math.j.44.2.124 https://www.jstor.org/stable/10.4169/college.math.j.44.2.124 Summary Using calculus only, we find the angles you can ...