WhiteLightning98
  • WhiteLightning98
A data set consists of the following data points:(3, 5), (5, 8), (6, 13)The line of best fit has the equation = -3 + 2.5x. What does this equation predict for a value of x = 3?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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calculusxy
  • calculusxy
is the question saying that the three points shown above all share the same slope-int formula: y = -3 + 2.5x ?
WhiteLightning98
  • WhiteLightning98
i think so
calculusxy
  • calculusxy
well we have a coordinate that has the x-coordinate of 3 already (3,5) but if we use that formula we get: y = -3 + 2.5(3) -> y = -3 + 7.5 -> y = 4.5

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More answers

WhiteLightning98
  • WhiteLightning98
A. 7.5 B. 6 C. 4.5 D. 9 these are the multiple choice answers
calculusxy
  • calculusxy
okay so we have 4.5 as y.
calculusxy
  • calculusxy
recall the work that i did in the previous post. \(y = -3 + 2.5x\) \(y = -3 + 2.5(3)\) \(y = -3 + 7.5\) \(\large \color{green}{y = 4.5}\)
WhiteLightning98
  • WhiteLightning98
so is the answer 4.5
calculusxy
  • calculusxy
yes
calculusxy
  • calculusxy
and you have the work as proof and my thought process :)
WhiteLightning98
  • WhiteLightning98
thank you so much
calculusxy
  • calculusxy
you're welcome :)

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