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Level 271

Inverse Variation

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Inverse variation equation
y = k/x where k is a nonzero constant and x does not equal 0
Inverse variation is when
the value of one variable (x or y) increases, while the value of the other variable decreases.
indirect variation
Inverse variation is also known as
constant of variation
equals k
the product of the variable
= k
y =
5 = k / 3, k = 15
If x varies inversely as y when x = 3 and y = 5
12 = k / 4, k = 48
If x varies inversely as y when x = 4 and y = 12
Direct variation looks like
a line going through the origin (0,0)
Direct variation equation
y = k x