Solve the equation by using Quadratic Formula

Part a: there is a correlation. the more hours that a student study, a higher score they get on the test. the table shows that each half hour more students study, their scores increase by 5 points. part b: y = 10x + 57part c: the slope indicates that the more hours students study, the higher score they get on the test. the y-intercept indicates that the average scores of students who studies for 0 hours is 57.