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3 years ago

Which ordered pair is not a solution of y= -4x - 9 ?

1 answer:

6 0

$y=-4x-9 \\ \\
(x,y)=(-9,27) \\
27=-4 \times (-9)-9 \\
27=36-9 \\
27=27 \\
true \\ \\
(x,y)=(3,-21) \\
-21=-4 \times 3-9 \\
-21=-12-9 \\
-21=-21 \\
true$

$(x,y)=(-6,15) \\
15=-4 \times (-6)-9 \\
15=24-9 \\
15=15 \\
true \\ \\
(x,y)=(5,-28) \\
-28=-4 \times 5-9 \\
-28=-20-9 \\
-28=-29 \\
not \ true$

D. (5,-28) is not a solution of y=-4x-9.

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Step-by-step explanation:

For this case we define the dependent variable as Y and the independent variable X. We assume that we have n observations and that means the following pairs:

$(x_1, y_1) ,....,(x_n,y_n)$

For this case we assume that we want to find a linear regression model given by:

$\hat y = \hat m x +\hat b$

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$\hat m$ represent the estimated slope for the model

$\hat b$ represent the estimated intercept for the model

And for any estimation of the dependent variable $\hat y_i , i=1,...,n$ is given by this model.

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3 years ago

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2 years ago

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Assoli18 [71]

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ 2) The integral of a constant follows this rule:

adx = ax

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This can be simplified to just x

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