Chapter 4 - Quadratic Functions - 4.2 Graphing Quadratics in Vertex Form - 4.2 Exercises - Page 319: 43

Domain: The set of all real numbers. Range: $[0 , \infty )$

The graph in the problem shows that the parabola opens upward and has its vertex at the point $(h,k)= (2,0)$. This the minimum point of the parabola since it faces upward. The domain and range of the function are given below. Domain: The set of all real numbers. Range: $[0 , \infty )$