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19 votes
What are the coordinates of the vertex of the quadratic function having a minimum value of –1 and roots located at (–3, 0) and (–5, 0)?

plz help I'm really lost!

User Leafeater
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1 Answer

17 votes
17 votes

Answer:

The coordinates of the vertex will be (-4,-1)

Explanation:

Let's recall that the vertex is in the middle point of the roots of a quadratic function.

The root are (-3,0) and (-5,0) so the x-value of the vertex will be:


image


image

The y-value of the vertex is given by the minimum value, that is -1

Therefore, the coordinates of the vertex will be (-4,-1)

I hope it hleps you!

User Robin Sving
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