The table contains data on the number of people visiting a historical landmark over a period of one week.
Day1 2 3 4 5 6 7
Visitors45 86 124 138 145 158 162
Which type of function best models the relationship between the day and the number of visitors?
Aa quadratic function with a negative value of $a$
Ba square root function
Ca quadratic function with a positive value of a
Da linear function with a positive slope
Day | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
Visitors | 45 | 86 | 124 | 138 | 145 | 158 | 162 |
Aa quadratic function with a negative value of $a$
Ba square root function
Ca quadratic function with a positive value of a
Da linear function with a positive slope