The answer is 4x + 50. 
Step by Step: -25+75= 50
You can’t add or subtract a variable with a number.
        
                    
             
        
        
        
Answer:
Yes, the given table represent an exponential function.
Step-by-step explanation:
Given table is :
x	y
1	4
2	16
3	64
4	256
Now we need to identify if the given table represent an exponential function or not. To find that we need to check if we can write the numbers in y-column in form of exponential function  .
.
We see that y-values are basically powers of 4 so we can write the related function as  .
.
Which is clearly in form of  .
.
Hence yes, the given table represent an exponential function.
 
        
             
        
        
        
The Phase Shift is how far the function is shifted horizontally from the usual position.
        
             
        
        
        
Answer:
Just apply the same method to part B
x:24
5:8
x3 x3
15:24