Answer:
Step-by-step explanation:
Plug the point (-1,20) into the equation.
20 = a|-1|+7
13 = a|-1|
13 = a ⋅ 1
a= 13
:::::
(1,20) is another point on the graph. 
 
        
             
        
        
        
Answer:
The domain of the given function is
 {x | x= -4,-1, 3, 5, 6}
 
        
             
        
        
        
Answer:
i. 15.4
ii.45.2
Step-by-step explanation:
correct me if im wrong
tnx
 
        
             
        
        
        
Answer: x=1
               y=2
Step-by-step explanation:
y=-x+3
y=4x-2
-----------
     y=y
-x+3=4x-2
3+2=4x+x
5=5x
x=1
y=-1+3
y=2
 
        
             
        
        
        
Answer:
about 9 pounds, 7 ounces
Step-by-step explanation:
5 ounces per week 
for 4 weeks
= 5 x 4 = 20 ounces gained thought these 4 weeks
Now add
8 Pounds, 3 ounces + 20 ounces = 9 pounds, 7 ounces