Which of the equations below could be the equation of this parabola?A.y = 3x2B.y = -3x2C.x = 3y2D.x = -3y2SUBMITarrow_backPREVIOUS
Question
Which of the equations below could be the equation of this parabola?A.y = 3x2B.y = -3x2C.x = 3y2D.x = -3y2SUBMITarrow_backPREVIOUS
Solution
To determine the correct equation for the parabola, we need to know the direction of the parabola.
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If the parabola opens upwards or downwards, the equation will be in the form of y = ax^2. If a is positive, the parabola opens upwards. If a is negative, the parabola opens downwards. So, if the parabola opens upwards, the equation could be y = 3x^2 (Option A). If it opens downwards, the equation could be y = -3x^2 (Option B).
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If the parabola opens to the right or to the left, the equation will be in the form of x = ay^2. If a is positive, the parabola opens to the right. If a is negative, the parabola opens to the left. So, if the parabola opens to the right, the equation could be x = 3y^2 (Option C). If it opens to the left, the equation could be x = -3y^2 (Option D).
Without a graph or additional information about the parabola, it's impossible to definitively choose the correct equation from these options.
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