Which answer is the direct linear variation equation?
F (x) = 3/4x
F (x)= 8 my choice
F (×)=6x
F (×)= 4/3×
The f(x)varies directly with x, and f(x)=8 when x=6
2 answers
no, you picked a constant function. It is always 8.
Direct variation means that y = kx
for some constant k.
Since y(6)=8,
8 = k*6
k = 8/6 = 4/3
hence, f(x) = 4/3 x
choice D
Direct variation means that y = kx
for some constant k.
Since y(6)=8,
8 = k*6
k = 8/6 = 4/3
hence, f(x) = 4/3 x
choice D