Chapter 4 - Quadratic Functions - 4.2 Graphing Quadratics in Vertex Form - 4.2 Exercises - Page 320: 68

Domain: All real numbers. Range: $[-45,\infty)$

Given$$ f(x) = 5(x+13)^2-45.$$ The parabola opens upward as we can see from the graph. Its vertex gives the minimum point. The domain and range are given by: Domain: All real numbers. Range: $[-45,\infty)$.