According to the graph, the area of grass that can be planted in 2 hours is 100 square meters.
The graph shows a linear relationship between the time spent planting grass and the area of grass planted. This means that for every additional hour spent planting grass, the area of grass planted increases by a constant amount. In this case, the constant amount is 50 square meters.
Therefore, to find the area of grass that can be planted in 2 hours, we simply need to multiply the constant amount by 2.
This gives us 50 square meters * 2 hours = 100 square meters.