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Earn +20 ptsQ: How do you find the vertex of an equation in vertex form?
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The vertex of the parabola below is at the point (-4-2) which equation below could be one for parabola?
-2
The vertex of the parabola below is at the point -3 -5 Which of the equations below could be the equation of this parabola?
2
How do you find the equation of a parabola if you know the vertex and a point it passes through?
Use this form: y= a(x-h)² + k ; plug in the x and y coordinates of the vertex into (h,k) and then the other point coordinates into (x,y) and solve for a.
What is the vertex of the equation y equals 2x-1?
3
How do you find the x value of the vertex of a quadratic equation?
It depends on the level of your mathematical knowledge. One way is to differentiate the quadratic equation and find the value of x for which the derivative is 0. The advantage of this method is that it works for turning points of polynomials of all degrees. The disadvantage is that you need to know differentiation. For a quadratic, an alternative, and simpler way is to write the equation in the form: y = ax2 + bx + c Then the x value of the vertex is -b/2a
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