I. Identify whether each situation/problem represents quadratic function or not. Write Q when it is quadratic function and NQ if not. Use a separate paper for your answers 1. A cereal company finds that if it spends Php40,000 on advertising, then 100,000 boxes of cereal will be sold, and if it spends Php60,000, then 200,000 boxes will be sold. 2. The sum of two numbers is 40. Find their greatest possible product. 3. A 5 cm by 5 cm is cut from each corner of a rectangular piece of cardboard. The sides are folded up to make an open box with a maximum volume. If the perimeter of the base is 50 cm, what are the dimensions of the box? a 4. A truck rental company charges P300 to rent a truck for the day, plus an additional charge for every kilometer. The total cost of renting a truck and driving 100 km P650. 5. A rectangle has a perimeter of 100 cm. Find the greatest possible area of the rectangle (Applications of Quadratic Functions Modified April 20, 2020 and Applications of Linear Functions n.d.)