Question

Suppose y varies inversely with x, and y = 25 when x = -15. What inverse variation equation relates x and y ?

a) y=5/x
b) y=-5/x
x) y=-5x
d) y=5x

Answer 1

The inverse variation equation is y = -5/x

What is equation?

Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal

y varies inversely as x

Let variation constant = k

y = k/x, y = 25 and x = -15

25 = k/(-15),  k = -375 divded by 75 ,So k = -5

The inverse variation equation is y = -5/x

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