Can you help me check 2 questions?
suppose y varies directly with X write a direct variation equation that relates X to Y
Y=7 1/2 when X=3
A.y=3/2x
B.y=2/3x
C.y=5/2x
D.y=2/5x
(I think it's C am I correct?)

Question

Can you help me check 2 questions?
suppose y varies directly with X write a direct variation equation that relates X to Y
Y=7 1/2 when X=3
A.y=3/2x
B.y=2/3x
C.y=5/2x
D.y=2/5x
(I think it's C am I correct?)

cookiemonster18 · Answer

@rebelbluebeetle  can you help me

nikato · Answer

C is correct

since y vairies directly with x means 
y=kx

nikato · Answer

plug in the y and x and solve for k

7 1/2= k(3)
5/2 =k
so your equation would be

y=5/2 x

cookiemonster18 · Answer

@nikato can you help with the 2nd one?