Answer:
The maximum height of the ball was 30 feet
The ball was in the air for 6 seconds
Step-by-step explanation:
The maximum height was 30 feet because that is the highest y-value before the y-values start decreasing. You could also call it the peak.
You would know the ball was in the air for 6 seconds because the time elapsed between it's liftoff at 0 feet and it's landing at the other 0 feet was 6 seconds.
