Answer:
Step-by-step explanation:
You have 3 unknowns: a, b, and c.  It's our job to find them algebraically.  I'm going to start with the point where x = 0 and y = 7.  You'll see why in a minute.  Filling in the standard form of a quadratic
 using (0, 7):
  using (0, 7):
 gives you that c = 7.  We will use that value now when we write the next 2 equations.  Now the point (-2, 19):
  gives you that c = 7.  We will use that value now when we write the next 2 equations.  Now the point (-2, 19):
 and
  and
 so
 so
12 = 4a - 2b
Now for the next point (-1, 12):
 and
  and
 so
  so
5 = a - b
Now we have a system of equations (the 2 bold font equations) that we will solve by elimination:
  12  =  4a  -  2b
   5  =   a   -    b
Multiply the bottom equation by -4 to get a new system:
  12  =  4a  -  2b
-20  = -4a  +  4b
Add those together to get rid of the a terms and end up with
-8 = 2b so
b = -4
Now we can sub in -4 for b to solve for a.  I'm using the second bold type equation to do this:
5 = a - (-4) and
5 = a + 4 so
a = 1 and the equation for the quadratic function is

 
 
        
             
        
        
        
If he is paid 3.27 for every widget assembled...and he assembles 209...then his total pay for the week is : 3.27 * 209 = $ 683.43 <==
        
                    
             
        
        
        
So I am pretty sure you need to combine the shapes or you just need to make each of them 3d 
 
        
             
        
        
        
B) f(x)=-150x+1500
U started with 1500 and ur losing 150 every month
Thanks for the Brainliest!