Answer:
the expression is
y=8x
Step-by-step explanation:
y varies directly as x is written as
[tex]y \alpha x[/tex]
introducing constant
y=kx
from the question, when y=48, x=6
substitute it in the formula
48=6k
making k the subject by dividing through by 6
[tex] \frac{48}{6} = \frac{6k}{6} [/tex]
k=8
putting the value of k in the expression,
y=8x
the value of y when x=2
y=8×2
y=16
thus the value of y when x=2 is 16.
