7 and 9 so what u do is calculate the graph and done
|-11+8|=|-3|=3. Plug in f(-11)
Answer:
The length of line segment AB is 9 units.
Step-by-step explanation:
To find this, you count how many squares there are between the two points. Hope I helped.
Differentiate the given solution:

Substitute
and
into the ODE:

and it's easy to see the left side indeed reduces to 0.