The distance, d, in inches of a weight attached to a spring from its equilibrium as a function of time, t, in seconds can be modeled by the graph below. Which equation is represented in the graph below? On a coordinate plane, a curve crosses the y-axis at (0, negative 5). It increases to (1, 5) and then decreases to (2, negative 5). 5 cycles are shown. d = negative 10 cosine (StartFraction pi Over 2 EndFraction t) d = negative 10 cosine (pi t) d = negative 5 cosine (StartFraction pi Over 2 EndFraction t) d = negative 5 cosine (pi t)