For the inverse variation equation Xy = k what is the constant of variation, k, when X = -2 and y =5
1 answer:
The constant of variation is: -10
Step-by-step explanation:
The inverse proportion between y and x is given by:
y ∝ 1/x
When the proportionality symbol is removed, the proportionality consatnt is introduced
So
Putting the values of x and y
x = -2
y = 5
Hence,
The constant of variation is: -10
Keywords: Proportion, variation
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Answer:
x = ± 1
Step-by-step explanation:
Given
3(x² - 4) + 7 = - 2 ( subtract 7 from both sides )
3(x² - 4) = - 9 ( divide both sides by 3 )
x² - 4 = - 3 ( add 4 to both sides )
x² = 1 ( take the square root of both sides )
x² = ± = ± 1
Thus
x = - 1, x = 1