The figure above shows the graph of a parabola in the xy-plane. Which of the following could be the equation of the parabola?



Comments (1)

The parabola has an x intercept of about 1.7 and -1.7 so if we can estimate that the 1.7 ^2 is about 3 then we can assume this is the answer because the sq root of 3 is then 1.7 If we were to have an equation that said (x+1.7)(x-1.7) we would know right away that it was the correct answer None of the other answers come close to that

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