Answer:
8/2 - 20/5
Step-by-step explanation:
please mark brainliest. 
 
        
             
        
        
        
The equation of the polar curve  is an even cosine function.
 is an even cosine function.
<h3>Polar curves</h3>
In geometry, polar curves are curves that are represented by the polar coordinates such that they are drawn around a fixed point
The equation of the polar curve is given as:

To graph the polar curve, we make use of the following representations:
- r represents the y-axis
 represents the x-axis represents the x-axis
Using the above representation, we can graph the polar curve
See attachment for the graph that represents 
Read more about polar curves at:
brainly.com/question/4618020
 
        
             
        
        
        
Answer:
2311
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
-1/3
Step-by-step explanation:
Taking two points on the graph (I took (0,9) and (6,7)
Slope=(y2-y1)/(x2-x1)
(7-9)/(6-0)=-2/6
=-1/3
 
        
                    
             
        
        
        
If you would like to write the equation in the above form, you can calculate this using the following steps:
x^2 - 8x + 13 = 0
(x - 4)^2 = x^2 - 8x + 16
(x - 4)^2 - 3 = 0
(x - 4<span>)^2 = 3
</span>
The correct result would be (x - 4<span>)^2 = 3.</span>