Question

What is the equation of the line of best fit for these data? Round the slope

and y-intercept of the line to three decimal places.
O A. y = 13.877x+0.717
OB. y= 0.717x+13.877
OC. y=-13.877x+0.717
OD. y=-0.717x+13.877
X
y
2 12
5 11
7
9 7
9
11

Answer 1

D.

Y decreases when x increases, so it should be negative. Y also starts at 12 when x is 2, so Y should be at a higher number when x is 0. To find it, take 13.877 and subtract my 0.717. It's a bit off but it's more accurate than the other equations.