Which function is represented by the graph?
Af(x) = 2x + 6
Bf(x) = -2x + 6
Cf(x) = 1\2x+6
Df(x) = -1\2x+6
Af(x) = 2x + 6
Bf(x) = -2x + 6
Cf(x) = 1\2x+6
Df(x) = -1\2x+6