There are two different formulas that you can use to find the axis of symmetry. One formula works when the parabola's equation is in vertex form and the other works when the parabola's equation is in standard form . Standard Form . If

The directrix of a parabola can be found, by knowing the axis of the parabola, and the vertex of

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To solve a math problem, you need to first clarify what the problem is asking.

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Math is all about finding the right answer, and sometimes that means deciding which equation to use.

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Mathematics is a way of dealing with tasks that involves numbers and equations.

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y = a (x - h)2 + k . And if the parabola opens horizontally (which can mean the open side of the U faces right or left), you'll use this equation: x = a (y - k)2 + h . Because the example parabola opens vertically, let's use the first