If y varies directly as x, and y is 48 when x is 6, which expression can be used to find the value of y when x is 2?

Oy - (2)

oy - 2

* - (48) (6)

y = (48) 6

Answer: y = (8) 2

Step-by-step explanation:

y varies directly as x; which is given as y = kx (1)

where k is the value of the constant of proportionality

When y = 48

x = 6

k = ?

from equation (1)

y = kx

equating the values

48 = k6

divide both sides by 6

48/6 = k6/6

k = 8

To find the value of y when x is 6 and k is 8

given y = kx

y = (8) 2 (2)

Therefore, equation (2) is the expression for finding the value of y

y = 8 (2).

Step-by-step explanation:

Its direct variation so y = kx where k is a constant to be found:

48 = k * 6

k = 48/6 = 8.

So y = 8x.

So when x = 2, y = 8 (2).