Based on the table, which best predicts the end behavior
of the graph of flx)?
as x- f(x) and as x
as x , f(x) and as x-
as x- f(x) and as x
as x - "flx) and as
y
_. f(x)
fx) - -
-f(x)
o u
.

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.