100,000 (sorry if I'm wrong)
        
             
        
        
        
Answer: The time taken by both of them if they work together is given by

Step-by-step explanation:
Since we have given that 
Time taken by Blake to paint one room = 9 hours
Time taken by Ned to paint one room = 6 hours
Work done by Blake  = 
Work done by Ned = 
Total work done by both of them together is given by

So, the time taken by both of them if they work together is given by

 
        
                    
             
        
        
        
The equation of the line in slope intercept form is y = 7x - 2
<h3>How to find the equation of a line?</h3>
The equation of the line can be solved with the following equation.
y = mx + b
where
Therefore,
m = -2  - 5 / 0 - 1 = -7 / -1 
m = 7
Hence, using (1, 5)
y = 7x + b
5 = 7(1) + b
5 - 7 = b
b = -2
Therefore,
y = 7x - 2
Hence, the equation of the line in slope intercept form is y = 7x - 2
learn more on equation of a line here: brainly.com/question/14956513
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