Andrea drew a regression line for this paired data set.

Mathematics

2 answers:

Tems11 [23]2 years ago

6 0

The equation of the line that passes through the points

(1,5) and (5,13) is y=2x+3

JulsSmile [24]2 years ago

6 0

Answer:

The correct option is 2.

Step-by-step explanation:

If a line passing through two points, then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

It is given that Andrea drew a regression line for this paired data set. Her line passed through (1, 5) and (5, 13) .

The equation of Andrea's regression line is

$y-5=\frac{13-5}{5-1}(x-1)$

$y-5=\frac{8}{4}(x-1)$

$y-5=2(x-1)$

$y-5=2x-2$

$y=2x-2+5$

$y=2x+3$

The equation of Andrea's regression line is y=2x+3. Therefore correct option is 2.

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3 years ago

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Answer:

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Step-by-step explanation:

Oh, this is one of those incredibly cool circle theorems! You might like this page:

https://www.mathopenref.com/secantsintersecting.html

For two secants that intersect at a point outside the circle, the product

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