Question

the value of y varies directly with x and y = 4.5 when x = 0.5. find y when x = 10

Answer 1

So what you asked this is what I got

x(y) = 4.5

If x= 0.5 then 

0.5(y) = 4.5
y=9

x(y) = 4.5

10(y) = 4.5
y= 0.45



hope this helps :)