Answer:
y = 5x - 21 
Step-by-step explanation:
Since we already know the slope, all we need to do is plug the values of x and y into the equation.
y = 5x + b
-1 = 5(4) + b
-1 = 20 + b
-21 = b
The equation is y = 5x - 21. 
 
        
             
        
        
        
Answer:
The correct answer is option C. y = 31x + 154.
Step-by-step explanation:
Since x represents the days and she learns 31 words per day you would need to multiply 31 and the number of days (x).
This would look like 31x.
We also know she already knew 154 from the beginning which means we just have to add 154.
This leaves us with the equation y=31x + 154.
Hope this helps!
 
        
             
        
        
        
Answer:
4 1/4
Step-by-step explanation:
f(x) = 2/3(6) + 1/4
f(x) = 4 + 1/4
f(x) = 4 1/4(4.25)
 
        
             
        
        
        
Answer: A
Step-by-step explanation:

 
        
             
        
        
        
I think the pattern is 
++_0_--
i.e positive twice neutral negative twice
2010
0.00 and 2012
-0.45