What’s the scientific notation of 0.70010
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Check the picture below, so the parabola looks more or less like so, with a vertex at (0 , -7), let's recall the vertex is half-way between the focus point and the directrix.
so this horizontal parabola opens up to the left-hand-side, meaning that the "P" distance is a negative value.
To solve a quadratic equation like , you can use the quadratic formula
In your case, , so the formula becomes
We can simplify the expression:
Since -3 is negative, its square root is computed as
So, the solutions are