Answer:
Step-by-step explanation:
y = 3x + 4
Plugin x = 3 in the equation,
y = 3*3 + 4
  = 9 + 4
y = 13
Plugin x = 4 in equation,
y = 3*4 + 4
   = 12 + 4
y = 16
Plugin x = 5 in the equation,
y = 3*5 + 4
   = 15 + 4
y = 19
2) y =x - 7
Plugin x = 10 in the equation
y = 10 - 7
y = 3
Plugin x = 15 in the equation
y = 15 - 7
y = 8 
Plugin x = 20 in the equation
y = 20 - 7
y = 13
 
        
             
        
        
        
Answer:
{(0, 0), (1, 2), (2, 4), (3, 4)
Step-by-step explanation:
the x in the ordered pair is not suppose to repeat, clearly this doesn't 
 
        
             
        
        
        
Answer:
The triangles aren't necessarily congruent. SAS postulate is side angle side, which means that the angle that is congruent must be between the two sides that are congruent. DF is congruent to MN, and DG is congruent to MP. This means, that angle D must be congruent to angle M. 
However, we only know that D is congruent to P, not M. 
These triangles are not necessarily congruent. 
 
        
                    
             
        
        
        
Answer:
7.8 and 18.8 is your answer 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
C. (2, 1)
Step-by-step explanation:
-3y = x-5
x+ 5y = 7
Subtract x from both sides in the first equation. Write the second equation below it.
-x - 3y = -5
x + 5y = 7
Add the two equations above.
2y = 2
Divide both sides by 2.
y = 1
Substitute y with 1 in the second original equation and solve for x.
x + 5(1) = 7
x + 5 = 7
Subtract 5 from both sides.
x = 2
Answer: C. (2, 1)