Question

Which equation represents a direct linear variation?
y=x²
y=2/5x
y=1/x
y=x+3

Answer 1

Which one is a line?

Answer 2

jdoe0001, do I report ?

Answer 3

linear equation, meaning no quadratic, that is, degree of 1
direct variation, meaning

\(\begin{array}{cccllll}
\textit{something }&\textit{varies directly to }&\textit{something else}\\ \quad \\
\textit{something }&={\color{red}{ \textit{some value }}}&\textit{something else}\\ \quad \\
y&={\color{red}{ n}}&x&\implies y={\color{red}{ n}}x
\end{array}\)

Answer 4

SolomonZelman sure

Answer 5

.................................

Answer 6

done,

Answer 7

what?