Answer:
Explanation:
(a)
Y = k / √x where k is a constant.
When x = 9 , y= 2 so:
2 = k / √9
k = 2√9
k = 6
So the answer is
y = 6/√x.
(b)
When x = 36,
y = 6 / √36
= 6/6
y = 1.
(c)
y = 6/√x
y * √x = 6
√x = 6/ y
x = 36/y^2
(d)
Let's take x = 9 and y = 2
New x = kx = 9k
New y = 2*0.5 = 1
So,
9k = 36 / 1^2
k = 36/9
k = 4.