Answer:
3.5 hours of studying to get a 75 on the exam.
Step-by-step explanation:
The y intercept in the graph is 40. This means that the constant in the linear equation is 40.
The slope of the equation is 10 because after the variable x travels one interval, the y travels 10.
To get the hours a student need to get 75 on the exam, we set the equation equal to 75.
75 = 10x + 40 where x = hours studied.
75 - 40 = 10x
x = 35/10
x = 3.5 hours
