WILL GIVE MEDAL !!!!
Given the data set (4, 85), (7, 92), (14, 110), which of the following equations best represents a line of best fit?

y = seven over threex + 75.67
y = two over threex + 75.67
y = five over threex − 75.5
y = seven over fourx − 75.5

Question

WILL GIVE MEDAL !!!!
Given the data set (4, 85), (7, 92), (14, 110), which of the following equations best represents a line of best fit?

 y = seven over threex + 75.67
 y = two over threex + 75.67
 y = five over threex − 75.5
 y = seven over fourx − 75.5

anonymous · Answer

If I use a CAS program to make regression over the 3 points, then I get a function:
y = 2.5127x + 74.7278, whcih means the correct answer is the first, since that is closest.

anonymous · Answer

It looks like this

anonymous · Answer

@Tommynaiter  thanks alot can u help with more?

anonymous · Answer

Yea, sure

anonymous · Answer

An equation was used to predict possible weights of puppies at 6 months of age. The actual weights of the puppies are also listed.


Actual weight (ounces)	9	15	16	20	20	26
Predicted weight (ounces)	9	12	15	18	21	24


The sum of the residuals is ______.

anonymous · Answer

I dont know what level you are on, but the residual sum can be calculated by the formula: