Answer:
Rational
Step-by-step explanation:
8.27 is rational
j = 26
129 - 51 = 78
78 ÷ 3 = 26
Your answer is j = 26
The ODE has an equilibrium point at
We want to be an unstable equilibrium solution - in other words, we want all solutions with initial condition for near 2 to diverge from - so .
Divergence from would require that for , any solution is increasing, and for , and solution is decreasing. In order for that to happen, we need
if , and
if .
Now we just pick to satisfy these conditions. An easy choice is , which forces , so that one possible ODE would be
I've attached a plot of the slope field to demonstrate the behavior of the solutions.
y = kx
6 = (k)(-7)
k = -6/7
y = -6/7 x
y = (-6/7)(4)
y = -24/7 = -3 3/7
Answer: y = -3 3/7
Hope this helps!