A student records his weight, in pounds, at the end of every week after joining a local gym. The table shows part of the data he recorded. Weeks (n)
Weight (w), in pounds
1 24
133.5 132 128.5
7
125
If the equation for a line-of-best fit for the data is approximately w = 134.75 – 1.4n, which statement is true?
The student weighed approximately 134.75 pounds at the time of joining the gym, and he gains an average of about 1.4 pounds each week.
The student weighed approximately 134.75 pounds at the time of joining the gym, and he loses an average of about 1.4 pounds each week.
The student weighed approximately 140 pounds at the time of joining the gym, and he gains an average of about 13.475 pounds each week.
The student weighed approximately 140 pounds at the time of joining the gym, and he loses an average of about 13.475 pounds each week.