Question

Antonia is keeping track of the number of pages she reads. She started the school year having already read 95 pages her book, and she then reads 20 pages each day. The function for her total pages read is f(x) = 20x + 95. What do f(x) and x represent in Antonia's situation?

1. f(x) represents the number of days; x represents the total number of pages that Antonia has read
2. f(x) represents the total number of pages that Antonia has read; x represents the number of days
3. f(x) represents the number of pages Antonia reads per day; x represents the number of days
4. f(x) represents the total number of pages that Antonia has read; x represents the number of pages she reads per day

Answer 1

Option 2. f(x) represents the total number of pages that Antonia has read; x represents the number of days

Explanation:

Answer 2

20 pages per day
so the variable attached to the number 20 would be "number of days"
so x represents the number of days

then 90 + 20(number of days) = (total number of pages)
so that makes f(x) = (total number of pages)

therefore your answer is 2.