Question

The values of x and y vary directly

Answer 1

Answer:

y = - $\frac{3}{2}$ x

Step-by-step explanation:

Given that x and y vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = - 4, y = 6, thus

k = $\frac{y}{x}$ = $\frac{6}{-4}$ = - $\frac{3}{2}$

y = - $\frac{3}{2}$ x ← equation of variation