Question

Which equation represents a direct linear variation?


A.
y = x + 3


B.


y=1/x


C.


y=2/5x



D.
y = x2

Answer 1

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

Answer 2

You should graph them out, what would y = x + 3 look like :P

Answer 3

What is Direct Linear Variation?

Answer 4

@jim_thompson5910

Answer 5

look at jdoe0001's template

Answer 6

Ok

Answer 7

an example would be something like y = 3x (in this case, n = 3)

Answer 8

So something like C?

Answer 9

?

Answer 10

good, in that case, n = 2/5

Answer 11

assuming C is

\[\Large y = \frac{2}{5}x\]

Answer 12

Yes, it is