Y is directly proportional to x. When y = 30, x = 6
a) Work out an equation connecting y and X.
b) Work out the value
of y when x = 12.

b) y= 60 why x is 12

Step-by-step explanation:

a) y = 5(x)

b) y= 60

Step-by-step explanation:

y is directly proportional to x

means:

y & x

y = k(x)

where k is a constant

input the values:

30= k(6)

divide both sides by 6

k = 30/6 = 5

a) i.e the relationship connecting y and x is

y = 5(k)

b) input the values

y = 5(12)

y= 60

3

step-by-step explanation: