Answer:
quadrant 2
Explanation:
just use ur graphing calculator 
 
        
             
        
        
        
Each of these ODEs is linear and homogeneous with constant coefficients, so we only need to find the roots to their respective characteristic equations.
(a) The characteristic equation for

is

which arises from the ansatz  .
.
The characteristic roots are  and
 and  . Then the general solution is
. Then the general solution is

where  are arbitrary constants.
 are arbitrary constants.
(b) The characteristic equation here is

with a root at  of multiplicity 2. Then the general solution is
 of multiplicity 2. Then the general solution is

(c) The characteristic equation is

with roots at  , where
, where  . Then the general solution is
. Then the general solution is

Recall Euler's identity,

Then we can rewrite the solution as

or even more simply as

 
        
             
        
        
        
Mount saint helen is an active stratovolcano and it was formed due to the subduction of the Juan de fuca plate.
        
             
        
        
        
Inflation is the term I think youre looking for