13-04-2017
Mathematics

contestada

Find the best fit linear data:
X. Y
-3. 196
-2. 139
-1. 82
0. 25
1. -32
2. -89
3. -146

A.y=-57x+25
B.y=-57
C.y=57x
D.y=57x+25

Respuesta :

13-04-2017

dy/dx=(139-196)=(82-139)=(25-82)=constant=-57

So this is just a line with a slope of -57, and we can see that the y-intercept (the value of y when x=0) is 25, thus the line is:

y=-57x+25

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