Answer: 25 inches
Step-by-step explanation:
Let's imagine that this line is the leg A______________B________C
x 11
|___________36____________|
From A to C = 36 inches
From B to C = 11 inches
To find A to B all we have to do is subtract the knee to ankle length (11) from total leg length (36), which 36 - 11 = 25 inches.
The graph will be as shown in attached figure

Let
, so that
:

Now the ODE is separable, and we have

Integrating both sides gives

For the integral on the left, rewrite the integrand as

Then

and so


Given that
, we find

so that the particular solution to this IVP is

Plug all the point into your calculator. Not sure if you need it y=mx+b but the R for that is r= -1
Answer: c
hope this helps!