What are two methods for solving a real-world problem that can be represented by an equation?

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Do you need with the x value for the minimum? its always between the two intercepts for a parabola

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.