Answer:
the answer is -5
Step-by-step explanation:
you didn't upload the full question, but I still solved it
the equation is already set up in the question:
f(x) = x/4 - 8
x = minutes
or
x = 12
and we then put 12 instead of x
so, the equation will look like this:
f(x) = 12/4 - 8
then we solve
First step: f(x) = 12/4 - 8
We divide 12 by 4 to get 3.
f(x) = 3 - 8
Subtract 8 from 3 to get −5.
f(x) = -5
Here is the full question: David is helping support a charity bike race. he is in charge of putting in a water station for the bikers halfway between the start and finish lines. the function f(x) = x/4 - 8 models davids distance in miles from the water stand x minutes into the bike race. after 12 minutes,
How far away from the water station would the bikers be
a) -5 miles
b) 5 miles
c) 11 miles
d) 16 miles
