Question

Final two questions!!!

Answer 1

Rate of change is defined as:
\[[f(b)-f(a)]/(b-a)\]
where b is the bigger number of your boundary, and a is the smaller number.
The boundary is: \[-3\le x \le -1\]
so what would be your b and what would be your a?

Answer 2

-1 : b
-3: a

Answer 3

Yep!
So the equation for rate of change would be:
\[[f(-1)-f(-3)]/[-1-(-3)]\]
Can you do it from here?

Answer 4

x=1

Answer 5

\[rate of change = \frac{ f(b) -f(a)}{ b-a }\]

Answer 6

f(-1)=1
f(-3)=23
f(-1)-f(-3)=1-23= -22
b=-1
a=-3
b-a=-1-(-3)=-1+3=2

The total rate of change is -22/2=-11