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Brilliant_brown [7]

1 year ago

6

What does a positive correlation tell you about the graph that compares advertising costs and sales. Would the owners of the com

pany be happier if the slope was steeper or flatter? Explain.

2 answers:

MArishka [77]1 year ago

5 0

A positive correlation means sales are rising because of advertising
the steeper the chart the more money is being made, so the owner would be happier with a steeper slope

Viefleur [7K]1 year ago

5 0

It means that sales are rising due to advertising. The owners would be happier with a steeper slope because it means higher sales for less monetary expense
(mo money less spending y'all)

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we know that

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The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

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<u>Case A)</u> Point $B(5,2)\ C(7,-5)$

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Substitute the values in the formula

$m=\frac{-5-2}{7-5}$

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<u>the answer Part A) is</u>

$B(5,2)\ C(7,-5)$ ------> $y=-3.5x-15$

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Substitute the values in the formula

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$m=\frac{-20}{10}$

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Find the slope HI

Substitute the values in the formula

$m=\frac{9-4}{8-4}$

$m=\frac{5}{4}$

$m=1.25$

so

The equation $y=1.25x+4$ is parallel to the line passing through the points $H(4,4)\ I(8,9)$

therefore

<u>the answer Part D) is</u>

$H(4,4)\ I(8,9)$ ------> $y=1.25x+4$

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Substitute the values in the formula

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$m=\frac{6}{-16}$

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The equation $y=5x+19$ is parallel to the line passing through the points $L(5,-7)\ M(4,-12)$

therefore

<u>the answer Part F) is</u>

$L(5,-7)\ M(4,-12)$ ------> $y=5x+19$

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