X =(-8+√464)/-8=1-1/2√<span> 29 </span><span>= -1.693</span>
        
             
        
        
        
The answer is true- A proportion is an equation showing equivalent of two ratios or rates
        
             
        
        
        
What's the point of brainliest .
        
             
        
        
        
Answer is option C
Mr. Jones jogs the same route each day. The amount of time he jogs is inversely proportional to his jogging rate.

k is the constant of proportionality 
We check with each option and identify which option gives us same K value
(a) 4 mph for 2.5 hours and 6 mph for 3.75 hours 
 so k = 10
 so k = 22.5
K values are not same 
(b) 3 mph for 2 hours and 4.5 mph for 3 hours
 so k = 6
 so k = 13.5
K values are not same 
(c) 4 mph for 2.5 hours and 5 mph for 2 hours
 so k = 10
 so k =10
K values are  same . 
Answer is option C
 
        
             
        
        
        
5) The slope is: 6
6) Answer: y=-1/2x+3
7) Answer: The slope is: -8, the y intercept is: 6
8) Answer: y=8x+30
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