courtney is standing on a mountain above a lake, and she tosses a rock with a velocity of 48 ft/sec. here is a table of values that represents the height of the rock, in feet. time (seconds) height (feet)?

Time (seconds) Height (feet)
0 140
1 160
2 140
3 90
4 10

this is a function.

the maximum height of the rock is feet.

the rock changes direction after seconds in the air.

This is a quadratic function.

The maximum height of the rock is 160 feet.

The rock changes direction after 3 seconds in the air.