Which graph represents a function with a rate of change of 0.5? On a coordinate plane, a line with negative slope goes through points (negative 1, 1) and (0, negative 1). On a coordinate plane, a line with negative slope goes through points (negative 2, 0) and (0, negative 1). On a coordinate plane, a line with positive slope goes through points (0, negative 1) and (1, 1). On a coordinate plane, a line with positive slope goes through points (0, negative 1) and (2, 0).