This graph shows the relationship between time (x-axis) and percentage of material dissolved (y-axis) in a linear fashion. It indicates that as time increases, the percentage of material dissolved also increases linearly with an R-squared value very close to 1, demonstrating the data fits very well to a linear regression model.

1. 0 0
1 0.008
20 0.131
60 0.342
85 0.498
100 0.594

2. 0.7
y = 0.005x + 0.004
0.6 R² = 0.998
0.5
0.4
Series1
0.3
Linear (Series1)
0.2
0.1
0
0 20 40 60 80 100 120