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What are the coordinates of the vertex?

What are the coordinates of the vertex?-example-1
User Jagershark
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Answer:

Parabolas always have a lowest point (or a highest point, if the parabola is upside-down) This point where the parabola changes direction, is called the vertex. If the quadratic is written in the form y=a(x-h)2+k then the vertex is the point (h,k)

User SwampyFox
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Answer:

a vertex is where curves or lines meet. in this picture the vertex is x-1 y -4

User Mcuenez
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