Solution:
To find the equation of line passing through points A (1, 3) and B (3, 7).
we know that, to derive the equation of a line we first need to calculate the slope of the line. Slope m of a line at points  and
 and  is given by -
 is given by -  .
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Slope of the line at point A(1,3) and B(3,7)
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Equation of a line using a point and a slope , 
 
 
 
 
The equation of line passing through points A (1, 3) and B (3, 7) : 
 
        
             
        
        
        
Answer:
-41
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
127.28 feet
Step-by-step explanation:
Given
Shape of basketball diamond = Square
Length of a side = 90 feet
If the length of a side is 90 feet then the length of other sides is 90 feet.
By finding how far the catcher, at home plate, throw to get the runner "out", we are basically finding the distance from 2nd base to home
This means we're calculating the diagonal of the field..
(Since the field is a square, it has a right angle at 1st base)
Let the diagonal be representing by x.
From Pythagoras,
x² = 90² + 90²
x² = 8100 + 8100
x² = 16200
x = √16200
x = 127.2792206135785
x = 127.28 feet ------ Approximated
 
        
             
        
        
        
divide the two:
52.50 / 7 = 7.50 per hour
 
        
                    
             
        
        
        
Depending on what the number is in for the bag