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3 years ago

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

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

5 0

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

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