while hiking julia kicked a small rock off a ledge that was meters above a crevasse use geogebra to graph the situation using the forula y=-4.9t^2+9 use the graph to determine when the rock will hit the bottom of the crevasse 2 meters below ground level roundyour answer to the nearest tenth of a second
the rock will hit the bottom of the crevasse in blank seconds
To model the situation in Geogebra, we can use the formula y = -4.9t^2 + 9 where y represents the height of the rock in meters and t represents the time in seconds.
1. Open Geogebra and create a new graph.
2. In the Input bar, type in the formula y = -4.9x^2 + 9.
3. Adjust the viewing window if necessary to see the graph clearly.
4. The x-axis represents time (t) and the y-axis represents height (y).
To determine when the rock will hit the bottom of the crevasse 2 meters below ground level, we need to find the time (t) when the height (y) of the rock is -2 meters.
5. On the graph, locate the point where the graph intersects the line y = -2.
6. Read the x-coordinate of this point to find the time when the rock will hit the bottom of the crevasse.
Round your answer to the nearest tenth of a second.