Answer:
the equation is y= 3x - 1
Step-by-step explanation:
to find the intersection with x just substitute 0 to Y. 
0=3x-1
3x=1
x=1/3
 
        
             
        
        
        
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If one of the exterior angles is 40, you can find its adjacent interior angle by subtracting 40 from 180. This is 40, so the triangle has 2 interior angles that are equal to 40. Now we have 2 of 3 interior angles. The sum of the measures of the interior angles of a triangle is 180, so we can set this equation up:
x + 40 + 40 = 180
x + 80 = 180 
x = 100
So the triangle's angles have measures of 40,40 and 100 degrees.
        
                    
             
        
        
        
Answer: 23.80
Step-by-step explanation: