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Nookie1986 [14]
3 years ago
15

Write an equation and identify the r value

Mathematics
1 answer:
aliya0001 [1]3 years ago
3 0

Answer:

3)

i) f(x)=1.1x+0.3

ii) r=1

4)

i) y=2.5825x+1.4369

ii) r=0.9823

Step-by-step explanation:

We perform a simple linear regression analysis in megastat software to determine the line of best fit for both relations and their associated correlation coefficients.

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We can see that

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Further explanation:

There are two methods to find if the given points are on same line

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  • Area of triangle method

Given points are:

A(1,3) B(4,2) C(-2,4)

We will find the slope of AB, BC, and AC

So,

m=\frac{y_2-y_1}{x_2-x_1}

Slope\ of\ AB=\frac{2-3}{4-1} \\=-\frac{1}{3}

Slope\ of\ BC=\frac{4-2}{-2-4}\\ =\frac{2}{-6}\\=-\frac{1}{3}

Slope\ of\ AC= \frac{4-3}{-2-1} \\=-\frac{1}{3}

We can see that

Slope\ of\ AB=Slope\ of\ BC=Slope\ of\ AC

The given points are on same line.

Keywords: Slope, Co linear points

Learn more about slope at:

  • brainly.com/question/6436086
  • brainly.com/question/12954015

#LearnwithBrainly

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