Question

Which is the direct linear variation equation for the relationship?

y varies directly with x and y = 12 when x = 4.


y = 2x + 4
y = 3x
y = x + 8
y = x – 8

Answer 1

@Nnesha Would it be the 3rd one, y = x + 8?

Answer 2

hmm what's the equation for direct variation ??

Answer 3

f(x) = kx

Answer 4

yes there is not any + or negative sign

Answer 5

ohhh thats true

Answer 6

\[\large\rm y = kx \]
now replace x and y by their values then solve for k

Answer 7

12 = k4?

Answer 8

yes now solve for k

Answer 9

would it be 3?

Answer 10

yes right

Answer 11

so y = kx
replace k by its value

Answer 12

y = 3x

Answer 13

good to go!

Answer 14

Thank you so much!!!!

Answer 15

\(\huge\color{green}{{\rm my }~\rm pleasure !! :)}\) \(\Huge \color{blue}{\star^{ \star^{\star:)}}}\Huge \color{red}{\star^{ \star^{\star:)}}}\)
glad 2 work wth u