Question

If y varies directly as x and y = 8 when x = 2, then y = 3 when x = 12
is this true or false

Answer 1

\[y = k \times x\]

x = 2 and y = 8:

\[k = 4\]

Answer 2

\[y = 4x\]

Answer 3

So when x = 12:

\[y = 4 \times 12 = 48\]