Question

y varies inversely with x. Find the inverse variation equation if x = -2.5 when y = 50.
y/x = -125
xy = -125
y/x = -20
xy = -20

Answer 1

if y varies inversely as x then \[y = \frac{k}{x}\]

\[k = yx\]

Answer 2

now substitute... \[k = (50)(-2.5)\]

Answer 3

what is \(50 \times -2.5?\)