For each modeling function, the residual, R₁, of data point (xi, yi) is calculated as R₁ = yi - f(x₁). For which function is the condition below true?
graphed data
I : 1, 2, 3, 4
xi: 0, 2, 4, 6
yi; 2, 1, -1, 1
ri : , , , ,
the functions provided :
A. f(x) = x - 2
B. f(x) = 3 - x
C. f(x) = 0
D. f(x) = 1
