Answer:

Step-by-step explanation:
Given



Required
Determine the length of a
Solve for c in 



Substitute  and
 and  in
 in 



Solve for 4b


Solve for b


Recall that: 


 
        
             
        
        
        
Actually it's 
y = 

it's a line. so 2 points is enough
choose x so that x+4 would be divisible by 3 :)
1) x = 2, then y = (2+6) / 3 = 2 - sketch point (2,2)
2) x = 5, then y = (5+4) / 3 = 3 - sketch point (5,3)
3) line goes though those points. use ruler :) 
 
        
        
        
Answer:
1.  144  2. 16 3. 1   4. 3x-6   
Step-by-step explanation:
So think of this as a function in a function.  So you work from the inside to the outside.  So for problem 1, we start with f(4)) [you read it "f of 4"] so what is the solution when x = 4, since f(x) means the function of x so f(4) means 'the function of 4' inside f(x).  
Since f(x) = 3x then f(4) = 3(4) [notice how you substitute the 4 everywhere you see a letter x]
so f(4) = 12, now you work the next part h(f(4)) since f(4)=12 then h(12)
So take the h(x) function which is h(x) =  then h(12) =
 then h(12) =  so h(12) = 144
 so h(12) = 144
 
        
             
        
        
        
You can make a proportion of 8/20 to 42/x and then simply cross multiply from there to solve for y
        
                    
             
        
        
        
hi there! here's my answer for you...
Answer:
y = 3/5x + 5
Explanation:
Use the slope formula and slope-intercept form y = mx + b to find the equation.
<em>hope this helped. have a good one!</em>