(12-9)/(13-5) = 3/8
(16-12)/(23-13) = 2/5
(16-9)/(23-5) = 7/18
4/5 is nowhere any of those slopes.
The handy calculator at
http://ncalculators.com/statistics/linear-regression-calculator.htm
comes up with
y = .3893x + 7.0123
Looks like none of them is close, since all their slopes are over 1/2. So, the closest is (D).
Given the data set (5, 9), (13, 12), (23, 16), which of the following equations best represents a line of best fit?
y = three fourthsx − 7
y = four fifthsx + 7 ***
y = three over twox + 7
y = two thirdsx − 7
4 answers
Thanks so much!
It was wrong it is c
In that case, I suspect the x-y values are reversed.