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Linear Function help plz?
The world record time in the 100 meter butterfly swimming was 50.40 seconds in 2006. Assume that the record falls at a constant rate of 0.05 second per year. What does the model predict for the record in 2020?
I'm having a hard time understanding and setting this up. So some help please?
But it says that the record falls by. 05 every year so wouldn't the answer be less seconds?
1 Answer
- AnnaLv 59 years agoFavorite Answer
f(x) = .05x+50.40
50.40 =is the time you start with, so you add that
.05 =this is the rate of seconds per year
x= this is the number of years
from 2006 to 2020, the year difference is 14 years. Plug 14 in for x and solve : .05(14)+50.40
= 51.1 seconds
