Тест по применению квадратичных функций: промежуточная алгебра

Work through four Intermediate Algebra quiz questions on applications of quadratic functions. Use Desmos to solve and interpret a foam-ball height equation and a toy-rocket height inequality, including realistic domains, units, and interval endpoints. Then complete the square to interpret a greenhouse heating-cost model’s vertex, and use the discriminant and a graph to analyze possible costs and whole-number inputs. 0:00 Introduction and using Desmos 1:02 Question 1: Foam-ball height and interpreting solutions 5:17 Question 2: Toy-rocket height inequality 8:47 Question 3: Vertex form and minimum heating cost 11:44 Question 4: Discriminant and whole-number cost inequality