Answer:
f(x) = 3x + 1
Step-by-step explanation:
f(x) = 3x + 1
f(1) = 3+1 = 4
f(2) = 3*2 + 1 = 7
f(3) = 3*3 + 1 = 10
f(4) = 3*4 + 1 = 13
it's a linear function with slope 3 and y intercept 1
 
        
             
        
        
        
I would use ratio.
14:8 divide 2
7:4 times 3
21:12
12 hours before going out.
        
                    
             
        
        
        
Answer:
7
Step-by-step explanation:
5(x - 3) = 2(x + 3)                     Distribute
5x - 15 = 2x + 6                    
     + 15         + 15                     Switch sides to the liked terms
5x = 2x + 6 + 15
-2x  -2x                                   Switch sides to the liked terms
5x - 2x = 6 + 15  
<u>3x</u> = 21                                      Divide
3       3                  
x = 7
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Collect like terms and calculate the sum
 
        
             
        
        
        
(4,3)(2,2)
slope = (2 - 3) / (2 - 4) = -1/-2 = 1/2
y = mx + b
slope(m) = 1/2
use either of ur sets of points...(4,3)...x = 4 and y = 3
now we sub and find b, the y int
3 = 1/2(4) + b
3 = 2 + b
3 - 2 = b
1 = b
so ur equation is : y = 1/2x + 1 <==