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8 votes
8 votes
Find vertex of y(x-5)^2+2

User Thaddeusmt
by
2.6k points

1 Answer

22 votes
22 votes

We can find the vertex of the function by expanding the function and replacing in the following expression:


x=-(b)/(2a)

Now, we expand the function:


y=(x-5)^2+2\Rightarrow y=x^2-10x+27

Now, we replace in the expression:


x=-((-10))/(2(1))=5

Now, we proceed as follows:

We plug the value we got [That is the x-component of the vertex] in the equation and solve for x, that is:


y=(5)^2-10(5)+27\Rightarrow y=2

So, the vertex is found in the point (5, 2).

User Guy Thomas
by
2.9k points
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