Question

If y is 6 when x is 3 and y varies directly with x, find y when x is 8.
a) 4
b) 11
c) 16

Answer 1

y directly varies with x means
\[y/x\]

Answer 2

so substitute the numbers they gave u for y and x
6/3 and y/8

Answer 3

@makayla.boze make sense?

Answer 4

yes, I get it now @Godlovesme

Answer 5

great :) can u solve for y ?

Answer 6

6/3= x/8
first do cross multiplication

Answer 7

Let y=kx
K is proportionality constant.
As. 6=k×3
k=6/3=2
Now
Y=k×8
As k=2
Y=2×8=16

Answer 8

ok, that's what I thought @Godlovesme

Answer 9

Did that help you

Answer 10

@Pawanyadav nice job but please let the users do some of the work too :)

Answer 11

thanks @Godlovesme

Answer 12

welcome (: