Question

May I plz get some help! I'LL MEDAL + FAN :D

Answer 1

@TheSmartOne

Answer 2

dirctly proportionality = u=kv

Answer 3

huh?

Answer 4

i think b and d

Answer 5

hint: \(\bf \begin{array}{cccccclllll}
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\
\textit{something}&=&{\color{brown}{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\
y&=&{\color{brown}{ n}}&\cdot&x
\\\hline\\
&& y={\color{brown}{ n }}x
\end{array}\)

Answer 6

something varies directly to something else = direct variation

Answer 7

ithink c and b or d

Answer 8

well... I gather we would need to differentiate it from a "inverse variation"
since an inverse variation is \(\bf \begin{array}{llllll}
\textit{something}&&\textit{varies inversely to}&\textit{something else}\\ \quad \\
\textit{something}&=&\cfrac{{\color{brown}{\textit{some value}}}}{}&\cfrac{}{\textit{something else}}\\ \quad \\
y&=&\cfrac{{\color{brown}{\textit{n}}}}{}&\cfrac{}{x}
\\\hline\\
&&y=\cfrac{{\color{brown}{ n}}}{x}
\end{array}\)

Answer 9

so.. that should rule a couple more

Answer 10

im so confused

Answer 11

so... .rule out the inverse variation ones
and what's left is just the direct variation ones


When you have eliminated the impossible, whatever remains, however improbable, must be the truth.

~~ Sherlock Holmes, The Sign of Four Mistakes are always initial. ~

Answer 12

@jabez177

Answer 13

i really dont get it

Answer 14

a direct variation means
a value, changes in relation to another, by some multiplier

Answer 15

any ideas on any of those being one?

Answer 16

D and C? :/

Answer 17

u there

Answer 18

am i right?

Answer 19

well D is correct

C on the other hand, \(\bf 0.5\left( \cfrac{1}{u}\right)=v\implies \cfrac{0.5\cdot 1}{u}=v
\\ \quad \\
\cfrac{0.5}{u}=v\impliedby \textit{inverse variation}\)

now if we take a peek at B
\(\bf \cfrac{v}{u}=9\implies \cfrac{v}{9}=u\implies \cfrac{1}{9}v=u\impliedby \textit{direct variation}\)

Answer 20

ok. so b and d?

Answer 21

yeap

Answer 22

Yay! thank u

Answer 23

yw