Answer:
Yes it's A. 0.79
Step-by-step explanation:
You plug in 6.5 into the y-value since it asks to find the ratio,x, if the pHis 6.5. Then you can solve using a calculator to get 0.79432, or 0.79
 
        
                    
             
        
        
        
This can't be factored with rational numbers. 
        
                    
             
        
        
        
Answer:
B. (6,2) and (3,0)
Step-by-step explanation:
To find the slope the equation is  so for (6,2) and (3,0) the equation would look like this
 so for (6,2) and (3,0) the equation would look like this  which simplies down to
 which simplies down to  and a negative divided by a negative is a positive so you're slope is
 and a negative divided by a negative is a positive so you're slope is  and it matches the question.
 and it matches the question.