A group of students is researching the idea that the grade a student receives on a test
is a function of the number of hours of
sleep they got the night before the test. The
equation they used is g = 128 – 8 where g
is the grade and s is the number of hours
sleep. Below is a table showing the number
of hours of sleep the night before a test and
the test grade for 4 students.
Student
# of Hours
Test Grade
75
96
88
91
Which statement best describes the accuracy
of this equation based on the data above?
(A) It gives an accurate result for all 4
students. ^
(B) It gives an accurate result for exactly one
student
(C) It does not give an accurate result for any
student
(D) It does not give an accurate result for
Joe.
Jack
Jill
Joe
Jane
6
7
8