Question

Help me find my answer please

Answer 1

Answer:

-3

Step-by-step explanation:

$\frac{-1}{3} =\frac{-3}{9}$

Answer 2

Answer:

y = - 3

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition that y = - 1 when x = 3, thus

- 1 = 3k ( divide both sides by 3 )

- $\frac{1}{3}$ = k

y = - $\frac{1}{3}$ x ← equation of variation

When x = 9, then

y = - $\frac{1}{3}$ × 9 = - 3