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anonymous
 4 years ago
how do you find the equation of a line of best fit? please help!!
anonymous
 4 years ago
how do you find the equation of a line of best fit? please help!!

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Exactly what do you need help with?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i dont know what steps to do in order to find the equation of the line of best fit

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0look for the yintercept first. If the equation is in the form y=mx+b, b is the yintercept, which is the point the line crosses the graph

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Next look for the slope, m, which is \[\frac{y2y1}{x2x1}\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0do i get 2 ploted points?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0If you have plotted points, then you can substitute them into that equation for slope

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0after that do i just plug the slope and the yintercept into the equation?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0if you know the slope and the yintercept, you can identify the graph

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0the mean of your xs and the mean of your ys will be a point on the line of best fit \[(\bar x,\bar y)\] is on the line so we just need to determine a good slope to use

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0i cant recall how the average slope is obtained; personally I just use excel to calculate the slopes and pick the average fromthe interquartile range ..... but thats not "proper" :)
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