3 years ago

Direct Variation: If y = 6, when x = -2, find y when x = 18.

Mathematics

1 answer:

lions [1.4K]3 years ago

3 0

Answer:

The answer is -54. Please mark as brainliest :)

Step-by-step explanation:

Y is directly proportional to x. So....

<h3>Finding the value of constant k.</h3>

y=kx

6=-2k

-3=k.

<h3>Finding y when x is 18</h3>

y=-3*18

y=-54.

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Answer:

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Step-by-step explanation:

<u>Eigenvalues of a Matrix</u>

Given a matrix A, the eigenvalues of A, called $\lambda$ are scalars who comply with the relation:

$det(A-\lambda I)=0$

Where I is the identity matrix

$I=\left[\begin{array}{cc}1&0\\0&1\end{array}\right]$

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$det\left(\left[\begin{array}{cc}3&5\\8&0\end{array}\right]-\left[\begin{array}{cc}\lambda&0\\0&\lambda \end{array}\right]\right)=0$

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