Question

1) y is directly proportional to x. If y-6, when x - 2. Find

a) The constant of proportionality. ​

Answer 1

k = 3

Explanation:

Given that y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportionality

To find k use the condition y = - 6 when x = - 2, then

k =
`(y)/(x)` =
`(-6)/(-2)` = 3