D- The new graph would be steeper than the original graph, and the y- intercept would shift up 3 units. 
The purple line is y=-5x + 2
The pink line is y = -7x + 5
 
        
             
        
        
        
Price after off =80-  1/4 * 80 = 80-20 = $60
Coupon discount = 60*10/100 = $6
So, he have to pay, 60-6 = $54
 
        
                    
             
        
        
        
Answer:
TRUE. We need to use the chain rule to find the derivative of the given function.
Step-by-step explanation:
Chain rule to find the derivative,
We have to find the derivative of F(x)
If F(x) = f[g(x)]
Then F'(x) = f'[g(x)].g'(x)
Given function is,
y =  
 
Here g(x) = (2x + 3) 
and f[g(x)] = 

y' = 
    = 
y' = 
Therefore, it's true that we need to use the chain rule to find the derivative of the given function.
 
        
             
        
        
        
Answer:180 u
Step-by-step explanation:
 
        
             
        
        
        
A) yes
B) yes
C) no
For each of these, substitute the value of x in the ordered pair into x in the function.
For A, x = -5; -5<2, so the piece of the function we want is f(x) = 3.  In our ordered pair, y=f(x)=3, so yes, it is a solution.
For B, x = 2; 2≤2<6, so the piece of the function we want is f(x) = -x+1.  In our ordered pair, y=f(x)=-1; -2+1=-1, so yes, it is a solution.
For C, x = 8; 8≥6, so the piece of the function we want is f(x) = x.  In our ordered pair, y=f(x)=-7; -7≠8, so no, it is not a solution.