Question

A proportional relationship is formed when y=1 and x=-4 what is the value of x when y=4

Answer 1

Answer:

x = - 16

Step-by-step explanation:

The equation relating two proportional quantities is

y = kx ← k is the constant of proportionality

To find k use the condition when y = 1, x = - 4

k = $\frac{y}{x}$ = - $\frac{1}{4}$

y = - $\frac{1}{4}$ x ← equation of proportionality

when y = 4, then

4 = - $\frac{1}{4}$ x (multiply both sides by - 4 )

x = - 16