3 years ago

Can someone help me with this step by step? will award brainliest :) thank you sm!!

Mathematics

1 answer:

mestny [16]3 years ago

5 0

I'm not this high in maths but I think it's -10 I don't know but I worked it out

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Would like scatter plot image with line of best fit on the plot

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Just take it in co-ordinate pairs

(x,y)=(Arm span,Height)

Take two points

(58,60)
(41,40)

Slope:-

$\\ \sf\longmapsto m=\dfrac{40-60}{41-58}$

$\\ \sf\longmapsto m=\dfrac{-20}{-17}$

$\\ \sf\longmapsto m=\dfrac{20}{17}$

$\\ \sf\longmapsto m\approx 1.2$

Equation of line in point slope form

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$\\ \sf\longmapsto y-60=1.2(x-58)$

$\\ \sf\longmapsto y-60=1.2x-69.6$

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Convert to slope intercept form y=mx+b

$\\ \sf\longmapsto y=1.2x-9.6$

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Hope this helps and have a nice day:)

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