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Mathematics
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Mathematics
Combined Variation
Mathematics
Question
Combined Variation
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Variation relation
Equation form
y varies directly as w and the cube of x, and inversely as the cube root of z,
Variation relation
Definition graph of y against x
A graph with variable y at the vertical axis and variable x at the horizontal axis
Constant, k
A fixed or unchanged quantity value
The relationship ‘y varies directly as x’ can also be written as...
The relationship ‘x and y are directly proportional’ can also be written as...
Meaning of Symbol ∝ in (y ∝ x)
Refers to ‘is proportional to’
Examples of direct and joint variation relationships, y α xz
y changes directly with x and z
A joint variation
A variable changes directly and/or inversely with other variables
The equation Y changes directly with X and inversely with Z
Equation
Graph of y against x
Graph
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Combined Variation
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