Well the increase is 132/120. Simplify by dividing 12 from the numerator and the denominator, you should get 11/10.
11/10 is also 110%
        
             
        
        
        
Answer:
you can use the calculator very nice
 
        
             
        
        
        
 
 The limit is x---->4- 
The negative show that x approaches from the left
Now
As x approaches 4 from the left ... Means This number should be less than 4 (<4) but really close to 4. 
Let's pick a Number 
Say 3.99
Substitute this... You have
 3.99/3.99-4
 3.99/-0.01 
If we choose x to be 3.999 
we will have 
3.999/-0.001
Notice the pattern... As x approaches 4 from the left... This limit will approach NEGATIVE INFINITY 
Why? 
As you approach 4 from the left... 3.9,3.99,3.999... You notice that the denominator becomes negative and EXTREMELY SMALL... and when you divide by an extremely small Number..... You'll get a relatively HUGE VALUE(You can try this... Use a calc... Divide any number of choice by a very small number... say.. 0.0000001.... You'll get a huge result 
In our case... The denominator is negative... So it Will Approach a very Huge Negative Number 
Hence 
Answer.. X WILL APPROACH NEGATIVE INFINITY.
Vertical asymptotes are the zeroes of the denominator of a function 
The denom. is x-4 
Equate to zero to get the asymptote 
x-4=0 
x=4 
Hence... There will be a vertical asymptote at x=4. 
Have a great day!