Given the data points (1, 4), (4, 13), and (6, 19), which of the following equations describes the best-fit line?

Question

anonymous · Answer

it would help to know the following equations

anonymous · Answer

A.	 = 1 + 3x
 		B.	 = 3 + 1x
 		C.	 = 2 + 3x
 		D.	 = -1 + 3x

anonymous · Answer

possibly C but dont take my word on it

imstuck · Answer

Those points are linear, so finding the equation simply requires that you find the slope and where the line goes through the y axis.  The line goes through the y axis at y = 1.  So 1 is your y intercept.  Then find the slope.

imstuck · Answer

The slope goes up 3 and over 1, so slope is 3.  In y = mx + b, the m is the slope and the b is the y intercept, both of which we know.  So the equation is y = 3x + 1, or 1 + 3x in your answer choices, which is A.

anonymous · Answer

its was A thank you @IMStuck and thank for trying @malibu597