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Which is the quadratic variation equation for the relationship? y varies directly with x2 and y = 72 when x = 6. A. y = 12x B.y = 4x2 C. y = x2 + 25 D.y = 2x2
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Which is the quadratic variation equation for the relationship? y varies directly with x2 and y = 72 when x = 6. A. y = 12x B.y = 4x2 C. y = x2 + 25 D.y = 2x2
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Nov 19, 2017
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Which is the quadratic variation equation for the relationship?
y varies directly with x2 and y = 72 when x = 6.
A. y = 12x
B.y = 4x2
C. y = x2 + 25
D.y = 2x2
Mathematics
high-school
Anatolii Stepaniuk
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Anatolii Stepaniuk
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We are asked to find the expression that is expressed as y varies directly with x^2.
y α x²
To convert it to equality,
y = kx²
We find the value of k by using the given values,
72 = k(6)²
k = 2
Therefore, the correct answer is option D, y=2x².
Leenephi
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Nov 24, 2017
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Leenephi
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