Looking at the graph, answer the following questions:
1) Write an equation for the line of best fit
y = 25x + 40
2) Make a prediction for a student who studies 6 hours on what their math grade will be
3) Make a prediction of how many hours a student would need to study for a grade of 40%
2) According to the equation for the line of best fit (y = 25x + 40), if a student studies 6 hours, their math grade would be 25(6) + 40 = 150 + 40 = 190%.
3) To find out how many hours a student would need to study for a grade of 40%, we can rearrange the equation for the line of best fit:
0.40 = 25x + 40
Subtracting 40 from both sides:
-39.60 = 25x
Dividing both sides by 25:
x ≈ -1.584
Therefore, a student would need to study approximately 1.584 hours for a grade of 40%.