Answer:
good luck
Step-by-step explanation:
 
        
             
        
        
        
Here is your answer 
B. (12,30)
REASON:
Given, 
 .......(i)
 .......(i)
 .......(ii)
 .......(ii)
Putting the value of y from eq.i in eq.ii we get




Putting x=12 in eq.i we get

 
 


So,

Hence answer is (12,30) in which x=12 and y=30
HOPE IT IS USEFUL 
 
        
             
        
        
        
In calculus, we use derivatives to find the instantaneous rate of change at any point on a graph. To find the average rate of change, we just find the slope of the secant line that intercepts two points on the graph.
We find slope with the following equation:

In this case, we are looking for the slope from x = -1 to x = 1. We have both x values, so next we need the y values.
F(-1) = (-1)^2 - (-1) - 1 = 1
F(1) = (1)^2 - (1) - 1 = -1
Now plug in the x and y values to find the slope:
 The answer is -1.
The answer is -1.
 
        
        
        
Answer:
82
Step-by-step explanation: