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2 years ago

6

Find the constant of variation k for the direct variation

1 answer:

MAVERICK [17]2 years ago

8 0

F(x) = a.x . We ha to calculate a.

Back to the table, let's rewrite the coordinates

A(0,0)
B(2,-1)
C(4,-2)
D(7,-3.5)
We know that constant is called slope or coefficient is equal to:
a=y/x
Apart from A, in each of the coordinates y/x =-1/2 & this is the slope of the equation f(x) = (-1/2)x

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Step-by-step explanation:

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stellarik [79]

$\qquad\qquad\huge\underline{\boxed{\sf Answer}}$

Let's evaluate ~

$\qquad \sf \dashrightarrow \: \dfrac{1}{3 {}^{ - 2} \times {x}^{ - 4} \times {y}^{2} }$

plug in the values :

$\qquad \sf \dashrightarrow \: \dfrac{1}{3 {}^{ - 2} \times {3}^{ - 4} \times { - 1}^{2} }$

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Therefore, B is the Correct choice ~

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Alex

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Step-by-step explanation:

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