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?

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?

lfreeman1285 · Answer

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

ohohaye · Answer

I have to have f(1) in it though

lfreeman1285 · Answer

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.

ohohaye · Answer

OK, thank you