1)

Min created a miniature rocket launcher, and she's testing what happens as she launches heavier rockets.
The graph below shows the height of one of her heavier rockets relative to the ground over time, where the rocket's height (y) is measured in meters and time
(x) is measured in seconds. What was the greatest height that the rocket reached?

To determine the greatest height that the rocket reached, we need to look at the highest point on the graph. In this case, it appears that the rocket reached a maximum height of approximately 30 meters at around 4.5 seconds. Therefore, the greatest height that the rocket reached was 30 meters.