Looking at the graph, answer the following questions:

(3 points)
1) Write an equation for the line of best fit

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%

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In order to answer the questions, I need the graph you mentioned. Please provide the graph or describe it in detail.