Please help me with this problem I am not able to help my son to understand we keep getting it wrong please help.The function graphed approximates the height of a rock, in meters, x seconds after it falls from a cliff. After about how many seconds is the rock 20 m above the ground? 1.5 s1.9 s2.2 s2.7 sParabola on a coordinate plane with axes labeled x and f of x. The horizontal axis ranges from 0 to 5 in increments of 1. The vertical axis ranges from 0 to 50 in increments of 5. The parabola starts at begin ordered pair 0 comma 45 end ordered pair, passes through begin ordered pair 1 comma 40 end ordered pair, and begin ordered pair 2 comma 25 end ordered pair, and it ends at begin ordered pair 3 comma 0 end ordered pair.