Answer:

Step-by-step explanation:
Recall the formula:

We apply this formula to simplify 
This implies that:



This simplifies to


Df(x): x∈[-3,-1] ⋃ [1,4]
Rf(x): -3 ≤f(x) ≤7
the function g(x)-- -----------><span>I could model it as a second degree equation
</span>the roots are (view the table)
x1=2
x2=4
g(x)=(x-2)(x-4)
therefore f(x)=−3 sin(x − π) + 2 (x-2)(x-4)
using a graphical tool------ >see attached drawing The answer is the option <span>
A) f(x)</span>