Question

Variable y varies directly with x2, and y = 196 when x = 7.



Enter the constant of variation in the quadratic variation equation.



y = x2

Answer 1

\(\bf \begin{array}{cccllll}
\textit{something }&\textit{varies directly to }&\textit{something else}\\ \quad \\
\textit{something }&={\color{red}{ \textit{some value }}}&\textit{something else}\\ \quad \\
y&={\color{red}{ n}}&x&\implies y={\color{red}{ n}}x
\end{array}\\ \quad \\
y= 196\qquad x=7\qquad thus\qquad y={\color{red}{ n}}x^2 \iff 196={\color{red}{ n}}7\)

so what would "n" be then? that is, "n" or the "constant of variation"

Answer 2

hmm actaully should be squared....so
\(\bf \begin{array}{cccllll}
\textit{something }&\textit{varies directly to }&\textit{something else}\\ \quad \\
\textit{something }&={\color{red}{ \textit{some value }}}&\textit{something else}\\ \quad \\
y&={\color{red}{ n}}&x&\implies y={\color{red}{ n}}x
\end{array}\\ \quad \\
y= 196\qquad x=7\qquad thus\qquad y={\color{red}{ n}}x^2 \iff 196={\color{red}{ n}}7^2\)

so... what's "n" then?

Answer 3

196?

Answer 4

@jdoe0001

Answer 5

I don't understand plz