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All quadratic functions with real coefficients can be graphed on a standard x-y graph. Not all quadratic functions have real roots, maybe that's what you were thinking of?
As you probably suspect, there are no non-mathematical situations in which you would use the quadratic formula.
it's OK but i think i need some more meanings..
Life
Maybe at a restaurant
When you're shopping and only have a certain amount of money.
buying food
There are frequently specific real-life situations of "bad fit". This is where the real situation is very different from the environment assumed at the time the guideline was written. There are other situations where following the guideline would produce unfair, stupid, or otherwise undesirable results.
Shopping for multiple items Distances on a journey Arrival time for journies where you know the departure and duration
They can do it in real life or do a virtual dissection, but it would be nice if we had a decision wether to or not, because some students are very uncomfortable in situations like that
If you read the bible, some myths relate to the events. Mythology also relates to real life situations and all gods (in the myths) explain and demonstrate ways of life and culture.