Answer: 10
Step-by-step explanation:
Given ; y = 20
x = 4
since y varies directly as x,
y = kx
where k is the value of proportionality.
Input the values
20 = k (4)
20 = k4
dividing both sides by 4
20/4 =k
k = 5
To find the value of y when x = 2,
y = kx
y = 5 (2)
y = 10
