Answer:
a.
b.
c.
Step-by-step explanation:
We are given that
a.We have to find the value of f(-1)
Substitute the value of x in the given function
Then, we get
b.We have to find the value of f(3)
Substitute x=3 then we get
c.We have to find the value of f(x-1)
Replace x by x-1 then we get
Hence,
9. -5(4+6r)
-20-30r
-20-30(4)=-20-120=-140
10. -9-n/3
-9-9/3=-9-3=-12
answers: -140, -12
Yesss