Answer: 3.5
Step-by-step explanation:
In variation, and from the above question,
y ∞ x ,
y = kx , where k is the constant of proportionality
first find the constant k
5 = 5k
Therefore
k = 1
Now to find y , substitute for k and x in the first equation above
y = kx
y = 1 x 3.5
y = 3.5
