Question

When e = 4, f = 2, and g = 8. If e varies jointly with f and g, what is the constant of variation?
A)1/4
B)1/2
C)4
D)64

Answer 1

e$\alpha fg$
e=mfg
Where m is a constant of proportionality;
e=4, f=2 and g=8
Then;
4=m*2*8
4=16m
m=0.25