Joey throws a ball in the air. The graph shows the height of the ball on the y-axis and the time that the ball is in the air on the x-axis. The top of the graph is missing. After how many seconds does the ball reach the highest point?
A) 2 seconds
B) 4.25 seconds
C) 5 seconds
D) 28 seconds
E) 73 seconds
Since it is symmetrical parabola, the high point will be directly above the distance between the zeroes (approx 0 and 4).... 2 seconds (which you can actually SEE just by looking at the graph)