A math teacher is trying to analyze her test grades. She surveys the students to find out how many minutes they studied. She then makes a scatterplot of time studying and test grades.

Question

What is the domain?
Responses
A the students' grades on their teststhe students' grades on their tests
B the number of students in the classthe number of students in the class
C the different courses the teacher teachesthe different courses the teacher teaches
D the number of minutes the students studiedthe number of minutes the students studied
E the number of days the students had homework

Answer 1

In the context of the scatterplot that the math teacher created to analyze the relationship between time spent studying and test grades, the domain refers to the set of possible values for the independent variable, which in this case is the time students studied.

Therefore, the correct answer is:

D the number of minutes the students studied.