A scatter plot was created to show the relationship between the number of staff members and students at various schools. The scatter plot's trend line has an equation of y = 0.1x + 18, where y is the total number of staff members and x is the total number of students.
Use the equation to predict the number of students in a school with 120 staff members.
890 students
1,038 students
30 students
1,020 students
To predict the number of students in a school with 120 staff members, we can plug x=120 into the equation y = 0.1x + 18.
y = 0.1(120) + 18
y = 12 +18
y = 30
Therefore, the predicted number of students in a school with 120 staff members is 30.
So, the correct answer is 30 students.