Sangeetha Pulapaka
0

Thank you for asking a complete question Jadden :)

Here is your answer!

I have graphed both equations using Desmos


The orange parabola represents the function g, or rock B, and the blue parabola represents function f or rock A.

Rock B hits the ground first.

The graph for Rock B (function g) crosses the x-axis at about 1.5 s, which means it hits the ground about 1.5 seconds after launch.

The graph for Rock A (function f ) crosses the x-axis at about 2 s, which means it hits the ground about 2 seconds after launch.