3 years ago

He function f(x) = x2 + 10x – 3 written in vertex form is f(x) = (x + 5)2 – 28. What are the coordinates of the vertex?

Mathematics

1 answer:

strojnjashka [21]3 years ago

4 0

I believe it would be A, (-5, -28).

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3 years ago

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makkiz [27]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
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x=2
\end{cases}\implies 216=k2\implies \cfrac{216}{2}=k
\\\\\\
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\\\\\\
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