Question

Every day during January, Joshua ran two miles. Let x represent the date in January and f(x) represent the total number of miles Joshua had run by the end of that date.

I'm pretty sure that it is f(1)=60. Am I right?

Answer 1

Not quite, but you're on the right track.
The equation would be
f(x)=2x
Because x is the number of days.
There are 31 days in January, so it would be
f(31)=62

Answer 2

I have to have f(1) in it though

Answer 3

This would mean that we would just plug in 1 for x, if I'm interpreting this correctly.
f(1)=2(1)
So he would have ran 2 miles by the first day of January.

Answer 4

OK, thank you